With higher temperatures increasing hatch times and spring grains like wheat and rye have drying down, thrips may be more prevalent in vegetable crops, especially when small grains are adjacent to vegetable fields. Thrips are very small and often missed if casually looking at a plant since they hide in blossoms, under sepals, on under sides of leaves and other protected areas on the stems, leaves and flowers. To scout for thrips, look at plant parts mentioned above. It is also important to dissect a flower, pulling back petals and sepals to find hiding thrips. It is difficult to see thrips with the naked eye. Therefore, the use of a hand lens will help.
Most adult thrips are elongate, slender, very small (less than 1/20 inch long), and have long fringes on the margins of both pairs of their long, narrow wings. Immature thrips (called larvae or nymphs) are oblong or slender and elongate and lack wings. Most thrips range in color from translucent white or yellowish to dark brown or black.
Females of most plant-feeding species lay their elongate, cylindrical to kidney-shaped eggs on or into leaves, buds, or other locations where larvae feed. Thrips have several generations (up to about eight) a year. When the weather is warm, the life cycle from egg to adult may be completed in as short a time as 2 weeks.
Thrips will feed on most all vegetable crops – solanaceous crops like eggplant, tomatoes, peppers, white potatoes, cucurbit crops like cucumber, squash and melons, bean crops, allium crops like onions, garlic and leeks and others. This is a photo I took last week of Thrips damage and slender yellow thrips on leaves in a tomato field in Gloucester County.
Thrips feeding on plants can damage fruit, leaves, and shoots and very noticeably affect plants’ appearance. Leaves may be speckled on the top surface from feeding on under sides of leaves by the insect’s sucking mouthparts. High populations often cause significant damage to leaves that may at first glance mimic a foliar disease, but upon closer examination is thrips damage. Damage to fruit, like tomatoes may not appear until fruit ripen and can be seen as gold flecks on red tomato fruit. For many thrips species, by the time their damage is seen, such as after flowers open or fruit forms, the thrips may no longer be present.
Once thrips are identified, control can be difficult when they are found in high numbers. Preventative measures like the use of row covers and reflective mulch have some success. Both conventional and organic insecticides labeled for thrips control can be found in the Rutgers Commercial Vegetable Production Recommendations guide under the sections for individual vegetable crops. Always read the pesticide label for instructions, safety precautions, application rates and restrictions. Since thrips hide in tight areas of plant parts it is important to have good coverage and penetration when applying insecticides to reduce the population of this hard to control pest.
For more detailed information about thrips see the Rutgers Fact Sheet https://njaes.rutgers.edu/pubs/publication.php?pid=FS291
Thrips Active in Vegetable Crops
Veg IPM update 6/12/25
Greetings from the Veg IPM team!
Sweet Corn
Early plantings of sweet corn are silking throughout New Jersey. Moth captures in much of the state (see map) are indicating that 4 day spray intervals are necessary, with pockets of higher pressure requiring 3 day intervals, and a few with lower pressure, indicating 5 or 6 day intervals. Rotation is important for avoiding resistance, and there are four IRAC groups that are registered in silking sweet corn: 1 (carbamates), 3 (pyrethroids), 5 (spinosyns), and 28 (diamides). Corn earworm is at least partly resistant to several pyrethroids, so a spray program should not rely solely on pyrethroids, although they can be useful in tank-mixes or as pre-mixed products, such as Besiege or Elevest (Group 28 + Group 3). For detailed information about resistance and potential spray programs, the University of Delaware has an excellent resource on corn earworm management. We’ve also seen some instances of European corn borer and corn earworm feeding in tassels of scouted corn, but for the most part, their numbers have not been high enough to warrant control efforts prior to silking.
Spray intervals based on nightly pheromone moth captures for the southern part of New Jersey. Note that not all locations in the IPM program are currently trapping. This map is based on the following thresholds: 0 moths = 6-7 day schedule, 1 moth = 5 day spray schedule, 2-20 moths = 4 day spray schedule, 20+ moths = 3 day spray schedule.
Tomatoes
In southern New Jersey we’re seeing high thrips counts both in tunnels and in the field, although numbers have been higher in tunnels. We consider more than 5 thrips on 10 leaves a high count. Other guides suggest 3-5 thrips per flower or the presence of stippling damage on fruit to be a treatment threshold. Thrips management is especially important because of their ability to vector tomato spotted wilt virus (TSWV), a growing concern in New Jersey where we have resistance-breaking strains. TSWV has already been seen on farms this season. Thrips management can be especially challenging in high tunnels due to a lack of products. Minecto Pro (IRAC 28 + 6) and Exirel (IRAC 28) can be used in tunnels, but only suppress thrips populations (this means they reduce numbers, but do not eradicate them). In the field, Entrust/Radiant (IRAC 5) can be used as well as Torac (IRAC 21A) and Harvanta (IRAC 28). We do not recommend pyrethroids or neonicotinoids for thrips due to resistance in different thrips species. Refer to the previous link for a complete list of best management practices for thrips and TSWV.
We’re also seeing limited aphid and spider mite activity. If dealing with primarily aphids, products such as Beleaf (IRAC 29) are recommended, especially if plants have reached the flowering stage. However, natural enemies often control aphids, so if counts are low and natural enemies like lacewings, lady beetles, or parasitoid wasps are present, you may avoid sprays. For spider mites, Nealta (IRAC 25) is an effective material that is more friendly to beneficial insects, but Portal (IRAC 21A) and other materials can be used to manage populations. Colorado potato beetles are especially prevalent in eggplants. Please consult the Mid-Atlantic Commercial Vegetable Production guide for appropriate materials for CPB control.
Thrips on a tomato leaf. Photo by Maria Cramer.
Peppers
Peppers have been relatively pest-free so far this season, other than patches of aphids and a few disease issues. As in tomatoes, aphids are often controlled by natural enemies, and using selective insecticides can favor natural enemy activity preventing outbreaks. Before fruit set, the threshold for treatment is 10 aphids per leaf. After fruit set the threshold is 5 aphids per leaf. There are many products registered for aphids in peppers. similar to tomatoes, if only dealing with aphids, we recommend using Beleaf (IRAC 29).
Cole Crops
Flea beetle surrounded by feeding damage. Picture by Maria Cramer.
Flea beetle activity seems to be slowing down some, but they are still active in various cole crops. This year, they have been especially prevalent in lacinato kale, Napa cabbage and bok choy. Young plants are especially vulnerable to attack from flea beetles. The treatment threshold for flea beetles in heading cole crops is 50% infestation.
Left: Diamondback moth caterpillar, showing characteristic tapering at each end. Right: Imported cabbageworm caterpillar showing characteristic fuzziness. Pictures by Maria Cramer.
We continue to see caterpillar activity in heading cole crops. Treatment thresholds vary between crops and growth stage, but for heading cole crops between early vegetative and cupping, the treatment threshold is 30%. For very small caterpillars, sprayable Bt products (IRAC 11A) such as Dipel, Xentari, or Javelin can be effective on young imported cabbage worm caterpillars. Other materials approved for caterpillar control include Entrust/Radiant (IRAC 5), Proclaim (IRAC 6), Torac (IRAC 21A), and Exirel (IRAC 28). Diamondback moth (the primary caterpillar found in southern NJ) has resistance to many insecticide groups, and pyrethroids (IRAC 3A) are not effective for their management. For Bt products and contact insecticides, coverage on the undersides the leaves is essential.
As always, please consult the Mid-Atlantic Commercial Vegetable Production Guide for a more comprehensive list of materials that are labeled for specific crops and pests. As always, be sure to follow label rates and application instructions.
Vegetable IPM Update 6/5/25
Greetings from the Veg IPM team!
Sweet Corn
With the hot weather, we’re starting to see sweet corn really coming along. Some plantings of sweet corn are silking (especially in the south), so it’s time to think about corn earworm management. Moth captures in the Southern part of the state (see map) are indicating that 4 and even 3 day intervals are necessary in some areas. Rotation is important for avoiding resistance, and there are four IRAC groups that are registered in silking sweet corn: 1 (carbamates), 3 (pyrethroids), 5 (spinosyns), and 28 (diamides). Corn earworm is at least partly resistant to several pyrethroids, so a spray program should not rely solely on pyrethroids, although they can be useful in tank-mixes or as pre-mixed products, such as Besiege or Elevest (Group 28 + Group 3). For detailed information about resistance and potential spray programs, the University of Delaware has an excellent resource on corn earworm management.
Spray intervals based on nightly pheromone moth captures for the southern part of New Jersey. Note that not all locations in the IPM program are currently trapping. This map is based on the following thresholds: 0 moths = 6-7 day schedule, 1 moth = 5 day spray schedule, 2-20 moths = 4 day spray schedule, 20+ moths = 3 day spray schedule.
Cole Crops
Flea beetle surrounded by feeding damage. Picture by Maria Cramer.
Flea beetle activity seems to be slowing down some, but they are still active in various cole crops. This year, they have been especially prevalent in lacinato kale, Napa cabbage and bok choy. Young plants are especially vulnerable to attack from flea beetles. The treatment threshold for flea beetles in heading cole crops is 50% infestation.
Left: Diamondback moth caterpillar, showing characteristic tapering at each end. Right: Imported cabbageworm caterpillar showing characteristic fuzziness. Pictures by Maria Cramer.
We’re still seeing caterpillar activity in cabbage and other cole crops. Treatment thresholds vary between crops and growth stage, but for heading cole crops between early vegetative and cupping, the treatment threshold is 30%. At this stage, sprayable Bt products (IRAC 11A) such as Dipel, Xentari, or Javelin can be effective on young imported cabbage worm caterpillars. Other materials approved for caterpillar control include Entrust/Radiant (IRAC 5), Proclaim (IRAC 6), Torac (IRAC 21A), and Exirel (IRAC 28). Diamondback moth has resistance to many insecticide groups, and pyrethroids (IRAC 3A) are not effective for their management. For Bt products and contact insecticides, coverage on the undersides the leaves is essential.
Tomatoes
In high tunnels and field plantings of tomatoes, we’re seeing limited aphid, thrips, and spider mite activity. If dealing with primarily aphids, products such as Beleaf (IRAC 29) are recommended, especially if plants have reached the flowering stage. We have seen aphid populations decline over the last couple of weeks without spray, probably due to natural enemies predation. For thrips, Entrust, Radiant (IRAC 5) and Torac (IRAC 21A) can be used. For spider mites, Nealta (IRAC 25) is an effective material that is more friendly to beneficial insects, but Portal (IRAC 21A) and other materials can be used to manage populations. We’ve seen very few Colorado potato beetles (CPB) in tomatoes, so while no controls are needed yet, we’ll keep an eye out for increasing populations.
Eggplants
In eggplants we have seen some damaging populations of CPB. For plants under 6 inches, 2 small/1 large larvae per plant is the threshold, while for plants taller than 6 inches, the threshold is 4 small/2 large larvae per plant. Adults are hard to kill, so sprays should target the larvae, with younger/smaller larvae being more vulnerable than older larvae. CPB has resistance to many classes of insecticides and is notorious for quickly developing resistance to new ones, so plan to rotate IRAC groups if you’ve already treated or need to treat more than once. If you haven’t used a neonic (IRAC 4) at planting or in the drip, you can use a foliar neonic like Assail or a spinosyn like Entrust or Radiant (IRAC 5). Avoid IRAC 5 groups if you’ve already used a neonic, because there is risk of cross resistance. Diamide products like Coragen and Exirel (IRAC 28), Rimon (IRAC 15), and Torac (IRAC 21A) should all give good control.
Left: Colorado potato beetle larvae and feeding damage on an eggplant leaf. Right: Adult Colorado potato beetle. Photos by Maria Cramer.
Diseases
We’ve detected bacterial diseases of tomatoes and peppers on a few farms in the central and northern parts of the state (see photos below). Copper may help mitigate symptoms, but some strains have developed resistance due to continued copper use. Other products that may help include Actigard and Quintec. Otherwise, properly managing nutrients and growing conditions for the plant will be crucial for reducing the severity of this disease.
Bacterial leaf spot on tomato. Photo by Amanda Quadrel
Bacterial leaf spot on pepper. Photo by Amanda Quadrel.
Please consult the Mid-Atlantic Commercial Vegetable Production Guide for a more comprehensive list of materials that are labeled for specific crops and pests. As always, be sure to follow label rates and application instructions.
Authors: Amanda Quadrel (Northern NJ Veg IPM coordinator) and Maria Cramer (Southern NJ Veg IPM coordinator)
Bagworms + PEST ALERTS (SCALE crawlers) + Ornamental IPM 5/27 Recording Upload
Bagworms should begin hatching NOW through – 4 weeks in NJ, beginning in the southern regions. Now is an optimal time to get this pest on your radar and prepare materials or approaches to attack first/second instar caterpillars. The control window for this pest is typically between 600-900 GDD50 when they begin to hatch and become airborne, i.e. the “ballooning” phase. It is important to check for egg-hatch prior to applications for greatest chemical efficacy, and to continue scouting as they often hatch and develop at asynchronous rates.
It is critical to target these insects EARLY! We need to target when they are as small as shown in the image.
Bagworm management – mechanical: If eggs have not hatched: hand-remove sacs/bags. Typically female/egg filled sacs are higher in the canopy so keep that in mind while scouting. This removes the problem from the field or landscape.
Treatment options for Lepidoptera (caterpillars) to have at the ready – containing: B.t. (Bacillus thuringiensis), spinosad , bifenthrin ), cyfluthrin, carbaryl, chlorantraniliprole, cyclaniliprole, cyclaniliprole + flonicamid, Lambda-cyhalothrin, cyantraniliprole, Indoxacarb. NOTE – Lethal pesticide doses are important, as sub-lethal doses can trigger early pupation, making the pest all but invincible to chemical or biological treatments. Follow label exactly.
Still time to Sign up for the 2025 – Rutgers Ornamental IPM Program
(Join us for the next Session Tuesday 6/10/25)
Note we have clearwing borer lures and wing or delta traps, scale crawler tape, and yellow sticky cards available to commercial grower program members at our Cumberland (twaller@njaes.rutgers.edu) and Monmouth (william.errickson@njaes.rutgers.edu) RCE offices.
ALERTS:
- Scale crawler emergence throughout the state
- Bronze Birch Borer (BBB) and Emerald Ash Borer approaching adult emergence
- Clearwing Borer adult flight – still capturing clearwings
- Red-headed flea beetle (RHFB) egg hatch – adult emergence
- Bagworm reminders – be vigilant
UPLOADS 5/27 SESSION: (contains information on flathead borers (Bronze Birch, Emerald Ash), Armored scales, bagworms, Volutella blight in Boxwoods, Mildews)
Previous webinars:
- Click here for a PDF of May 13, 2025 webinar (contains information on scales and oomycetes) Click here for VIDEO of May 13, 2025 webinar
- Click here for a PDF of April 22, 2025 webinar (contains information on RHFB and early Clearwing borer treatments) Click here for VIDEO of April 22, 2025 webinar
- Click here for a PDF of April 08, 2025 webinar (Contains information on aphids and boxwood leafminer) Click here for VIDEO of April 08, 2025 webinar
(click the ‘Read More’ below for complete dates in S-C-Northern NJ per pest)
Vegetable IPM Update 5/30/25
Greetings from the Veg IPM team! The program welcomes Martina Lavender and Coco Lin as the first two scouts of the season, servicing North and Central Jersey respectively.
Sweet Corn
We’ve put out corn earworm pheromone traps throughout the state. While silking corn is the main target of CEW activity, we set the traps early to detect overwintering moths. So far, we haven’t spotted any serious corn pests through visual inspection.
Cole Crops
Flea beetle surrounded by feeding damage. Picture by Maria Cramer.
Flea beetle remain active in various cole crops. This year, they have been especially prevalent in lacinato kale, Napa cabbage and bok choy. Young plants are especially vulnerable to attack from flea beetles. The treatment threshold for flea beetles in heading cole crops is 50% infestation.
Left: Diamondback moth caterpillar, showing characteristic tapering at each end. Right: Imported cabbageworm caterpillar showing characteristic fuzziness. Pictures by Maria Cramer.
We’re seeing caterpillar activity (imported cabbageworm in the North and diamondback moth in the South) in cabbage and other cole crops. Treatment thresholds vary between crops and growth stage, but for heading cole crops between early vegetative and cupping, the treatment threshold is 30%. At this stage, sprayable Bt products (IRAC 11A) such as Dipel, Xentari, or Javelin can be effective on young imported cabbage worm caterpillars. Other materials approved for caterpillar control include Entrust/Radiant (IRAC 5), Proclaim (IRAC 6), Torac (IRAC 21A), and Exirel (IRAC 28). Diamondback moth has resistance to many insecticide groups, and pyrethroids (IRAC 3A) are not effective for their management. For Bt products and contact insecticides, coverage on the undersides the leaves is essential.
Tomatoes
In high tunnels and the first field plantings of tomatoes, we’re seeing limited aphid, thrips, and spider mite activity. If dealing with primarily aphids, products such as Beleaf (IRAC 29) are recommended, especially if plants have reached the flowering stage. We have seen aphid populations decline over the last couple of weeks without spray, probably due to lady beetle predation and parasitism from wasps. For thrips, Entrust, Radiant (IRAC 5) and Torac (IRAC 21A) can be used. For spider mites, Nealta (IRAC 25) is an effective material that is more friendly to beneficial insects, but Portal (IRAC 21A) and other materials can be used to manage populations. We’ve seen very few Colorado potato beetles, so while no controls are needed yet, we’ll keep an eye out for increasing populations.
Colorado potato beetle adult in tomato
Diseases
With little break in the rainy weather, we’re seeing plants stressed by flooding and some bacterial and fungal diseases popping up in tomatoes, peppers, and cole crops. If you’re seeing disease symptoms and need a diagnosis, samples can be sent to Rutgers Plant Diagnostic Laboratory.
We’ve detected bacterial leaf spot of tomatoes and peppers on a few farms in the central and northern parts of the state (see photos below). Copper may help mitigate symptoms, but some strains have developed resistance due to continued copper use. Other products that may help include Actigard and Quintec. Otherwise, properly managing nutrients and growing conditions for the plant will be crucial for reducing the severity of this disease.
Bacterial leaf spot on tomato
Bacterial leaf spot on pepper
Despite the rain, we also saw some rhizoctonia in cole crops, which shows up when transplant plugs dry out. For more information on this disease, check out the recent update in the PPA.
Please consult the Mid-Atlantic Commercial Vegetable Production Guide for a more comprehensive list of materials that are labeled for specific crops and pests. As always, be sure to follow label rates and application instructions.
Authors: Amanda Quadrel (Northern NJ Veg IPM coordinator) and Maria Cramer (Southern NJ Veg IPM coordinator)
Fruit IPM Report May 26, 2025
Peach:
Bacterial Spot: Copper formulations should be used starting at petal fall to suppress bacterial spot. Generally we recommend starting at 0.5 ozs metallic copper and gradually lowering the rate as the season progresses. The rate applied will depend on the formulation. Dr. Lalancette published a chart listing common copper formulations and rates for peach and nectarine applications. Avoid combining copper with captan especially if it has been overcast for several days. Also avoid acidic spray solutions when applying copper. Dr. Lalancette has published a handy guide for copper applications in early covers. Antibiotics containing oxytetracycline may also be used and may offer slightly more residual activity during long wetting periods. We have seen minimal bacterial spot symptoms. We are nearing pit hardening which usually occurs mid-June. Once fruit gets to this stage it develops some resistance to bacterial spot. Infections may still occur but will be less severe.
Oriental Fruit Moth: A biofix point for OFM was set on 4/2 for southern counties and 4/17 in northern counties. All Treatments for the first generation have past.
| OFM 2nd Generation Timing | ||||
| Insecticide Type | ||||
| County/Region | Degree Days by 5/26 base 45 | Conventional
1150-1200 1450-1500 |
Intrepid/Rimon
1050-1150 1300-1400 |
Diamides/Virus
1075-1150 1375-1450 |
| Gloucester – Southern | 796 | 1st –too far off
2nd – too far off |
1st –too far off
2nd – too far off |
1st – too far off
2nd – too far off |
| Middlesex – Northern | 662 | 1st – too far off
2nd – too far off |
1st – too far off
2nd – too far off |
1st – too far off
2nd – too far off |
Green Peach Aphid: We are still observing aphid colonies above threshold at some farm sites. If more than 1 colony of aphids are found in nectarines, or 2-3 colonies are found in peaches, an insecticide for aphids. See the NJ Commercial Tree Fruit Production Guide for recommended materials and rates.
Tarnished Plant Bugs; and Other Catfacing Insects: Catfacing insects are active, and activity will increase with dry weather and summer temperatures. Very little recent fruit feeding has been observed.
Figure 1. San Jose scale crawlers on peach. Photo by Dave Schmitt.
Scale Insects: White peach scale and San Jose scale crawlers (Figure 1) began emergence this week and will continue emergence for up to 6 weeks. Control options during crawler emergence include neonicotinoids (suppression only), and the IGR’s Esteem and Centaur. See the NJ Commercial Tree Fruit Production Guide and the product labels for more information.
Apples and Pears:
Diseases: Now that primary scab is nearing the end, or has ended, the focus turns toward summer diseases such as fruit rots (esp. Bitter rot), and sooty blotch and fly speck. Bitter rot control has been difficult at best in recent years even where management programs have been rigorous. Research has suggested products such as Merivon, Luna Sensation, Inspire Super, Omega, and Aprovia may be effective, and longtime reliable broad spectrum fungicides such as captan and ziram should provide control. Experience has suggested that the addition of phosphorous acid products such as Prophyt or Rampart to captan sprays may improve control. Observations are that these products improve control of other summer diseases such as sooty blotch and flyspeck, and may help suppress scab infections where present. Scab symptoms are appearing in some orchards statewide.
Fire Blight: Fire Blight symptoms began appearing in southern county apple orchards the week of 5/19 (Figure 2). Typically it is recommended to cut out infected limbs however this is a practical decision that must be made. This blog post from Michigan State may be helpful to decide whether it is worth cutting out infected tissue. Once the terminal buds set, typically in July, infected wood should be removed to prevent colonization by the bitter rot pathogen.
Figure 2. Fire blight strike on apple tree branch. Photo by Karlton Neidigh.
Codling Moth: A Codling Moth Biofix was set in Southern counties on 4/28 and in Northern counties on 4/30. See the NJ Commercial Tree Fruit Production Guide for recommended materials and rates. Where Mating Disruption has been employed, supplemental Madex applications should be made at the timings listed below.
| Codling Moth Degree Day Timing | |||||||||
| Application and Insecticide Type | |||||||||
| County Area | Biofix | Rimon:
75-100DD + 14-17 days later
|
Intrepid
150 + 450 DD Diamides – Altacor, Voliam mixes: (150-200 DD) |
Madex
250 DD + every 7-9 days during brood hatch (later if first spray is an IGR) |
Standard Insecticides – Delegate, Avaunt, OP’s, carbamates, pyrethroids
250 DD + 550 DD
|
||||
| DD | 75 | 100 | 150 | 450 | 250 | 250 | 550 | ||
| Southern | April 28 | past | past | past | May 29 | past | past | too soon to predict | |
| Northern | April 30 | past | past | past | too soon to predict | past | past | too soon to predict | |
Ambrosia Beetle : Infested trees are showing signs of stress. If you have had a history of this pest in your orchard, now is a good time remove and burn any trees that have been attacked as the flight appears to be declining or is over.
Wooly Apple Aphid (WAA); Green Apple (Spirea) Aphids (GAA): GAA colonies are beginning to appear in some apple blocks. GAA is generally a pest that can be tolerated since they do little direct damage. Treatment thresholds for GAA are if 50% of the shoots are infested with no beneficial insects present. WAA aerial colonies are also forming in southern counties. This is about a month earlier than usually observed. In most years these are controlled by beneficials however in some years like 2022, serious outbreaks can occur. The best control for WAA is Movento applied before or when the first colonies appear. Diazinon is also effective at knocking down infestations. Movento will also control GAA and should control San Jose scale when applied in mid-May, and suppress scale when applied in late May or early June. Do not combine diazinon, oil, or oil based penetrants with Captan.
Potato Leafhoppers (PLH): PLH adults began appearing in apples this past week (Figure 3). PLH should not be tolerated in non-bearing orchards because they can stunt the growth of new shoots. Likewise they should not be tolerated in orchards were fire blight is present because they have been demonstrated to spread the disease. PLH appear as light green smallish leafhoppers and are often found on the new leaves in the growing tips. Neonicotinoids are generally recommended for control however there are other broad spectrum materials that are effective. Refer to the NJ Commercial Tree Fruit Production Guide for more information.
Figure 3. Potato Leafhopper Adult & Nymph
Pear: Second generation pear psylla began hatching about 5/19. Options for control include spinosyn products such as Delegate and Entrust, and the neonicotinoids (IRAC group 4A). The addition of 0.25-1 gal of summer oil may improve control. Other options include Movento, the IGR’s Esteem and Centaur, and products containing abamectin. Be sure to read and follow the label instructions regarding the addition of penetrants for abamectin products, and Movento. Pear Psylla are still actively laying eggs and nymphs continue to hatch.
Grape: Early blooming native grapes were at trace bloom on 5/16, therefore we have set the Grape Berry Moth biofix at 5/16 for southern counties. Since V. riparia typically blooms with early natives we used Concord to set the biofix. The model works best when growers record their own bloom dates and use the Grape Berry Moth model at NEWA. Applications for GBM using Intrepid or Diamides should be made at 810 DD base 47. Other effective materials can be applied a few days later. Applications have been historically made around the end of June in southern counties.
Phenology Table: Based on annual observations made in Gloucester County.
| Pest Event or Growth Stage | Approximate Date | 2025 Observed Date |
| Bud Swell (Redhaven/PF-17) | March 23 +/- 15 Days | March 30 |
| 1/4″ Green Tip Red Delicious | March 31 +/- 13 Days | March 30 |
| Pink Peach (Redhaven/PF-17) | April 4 +/- 15 Days | April 1 |
| Tight Cluster Red Delicious | April 9 +/- 13 Days | April 5 |
| Full Bloom Peach (Redhaven/PF-17) | April 9 +/- 14 Days | April 10 |
| Pink Apple (Red Delicious) | April 14 +/- 12 Days | April 16 |
| Full Bloom Apple (Red Delicious) | April 22 +/- 11 Days | April 25 |
| Petal Fall (Redhaven) | April 22 +/- 10 Days | April 19 |
| Petal Fall (Red Delicious) | April 27 +/- 13 Days | May 2 |
| Shuck Split (Redhaven) | April 30 +/- 11 Days | April 26 |
| Pit Hardening | June 15 +/- 9 Days |
Tree Fruit Trap Captures – Southern Counties
| Week Ending | STLM | TABM-A | CM | BMSB | OFM-A | DWB | OFM-P | TABM-P | LPTB | PTB |
| 4/5/2025 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 4/12/2025 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 0 |
| 4/21/2025 | 0 | 0 | 0 | 0 | 36 | 0 | 1 | 0 | 0 | 0 |
| 4/27/2025 | 25 | 0 | 0 | 0 | 24 | 0 | 5 | 0 | 1 | 0 |
| 5/2/2025 | 517 | 0 | 4 | 0 | 12 | 0 | 6 | 0 | 13 | 0 |
| 5/9/2025 | 159 | 4 | 10 | 0 | 3 | 16 | 5 | 4 | 46 | 0 |
| 5/16/2025 | 91 | 11 | 6 | 0 | 1 | 36 | 2 | 14 | 69 | 0 |
| 5/23/2025 | 299 | 21 | 3 | 0 | 1 | 23 | 1 | 26 | 23 | 0 |
Tree Fruit Trap Captures – Northern Counties
| Week Ending | STLM | TABM-A | CM | BMSB | OFM-A | DWB | OFM-P | TABM-P | LPTB | PTB | AMBROSIA BEETLE |
| 4/5/2025 | 387 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 4/21/2025 | 435 | 0 | 0 | 0 | 0 | 0 | 1.3 | 0 | 0 | 0 | 0 |
| 4/27/2025 | 26 | 0 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | 0 | 72 |
| 5/2/2025 | 86 | 0 | 0.33 | 0 | 72.5 | 0 | 47.2 | 0 | 0 | 0 | 136 |
| 5/9/2025 | 56 | 0 | 5.3 | 0 | 58.8 | 0 | 22.9 | 0 | 0 | 0 | 145 |
| 5/16/2025 | 13.75 | 2.6 | 7.3 | 0 | 4 | 0 | 5 | 0 | 0 | 0 | 50.5 |
| 5/23/2025 | 4.8 | 10.3 | 10.5 | 0 | 0.6 | 31.25 | 4.2 | 0 | 14.6 | 1 | 22.2 |
