Fruit Crops Edition - Blueberry Section

Seasonal updates on diseases, insects, weeds impacting small fruit (blueberry, cranberry, and wine grape). Fruit Pest Alerts are also available via this category feed.
 
Subscription is through the general Fruit feed available via EMAIL and RSS.

Fruit IPM for August 16, 2017

Peach:

Spotted Wing Drosophila (SWD), Crop Diversity, Alternate Hosts, Wild Grape, Tall Trees and ‘Ready to Eat Fruit, Table-Ripe’ Fruit: Some farms, particularly in northern counties have diverse crops where stone fruit, raspberries, blackberries, blueberries, strawberries, and cherries (all SWD hosts) are grown on the same farm and often next to or close to each other. These same farms may be surrounded by woodlands that include wild chokecherry, wild grape, maturing pokeweed and other alternate hosts for SWD. As the season progresses, be aware that SWD populations go in only one direction – UP! The later the season, then the higher the population, and the greater the pest pressure. This means that the likelihood of infestation is increased, while control is made more difficult if sprays are skipped.

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Fruit IPM for August 2, 2017

Peach:

Oriental Fruit Moth (OFM): The third flight is on the way down in southern counties, and northern counties. Populations are low in peaches, but higher in apples.

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Delayed Harvest and Extended Storage of ‘Gloria’ Peaches.

‘Gloria’ is a large, yellow-fleshed, freestone, non-melting peach that ripens around mid-August. This late blooming variety, developed by Rutgers New Jersey Agricultural Experiment Station is unique because of its very attractive color, low acidity, distinctive flavor, and very firm flesh. Previously we saw that letting ‘Gloria’ hang longer lets fruit get sweeter and larger. Firm flesh allows for relatively longer hang time on the tree after fruit has reached commercial maturity, providing greater flexibility in harvest scheduling and shipping to growers as well as buyers. We have estimated how long it is safe to let ‘Gloria’ fruit remain on the tree and in cold storage without affecting fruit quality. Studies in two orchards in Southern NJ indicated that; [Read more…]

Fruit IPM for July 26, 2017

Peach:

Brown Marmorated Stink Bug (BMSB): Adults are present at two sites in Monmouth and Middlesex Counties. Numbers are very low, and in both cases the orchard consists of weedy ground cover.

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Fruit IPM for 7/21/17

Peach:

Oriental Fruit Moth (OFM): Treatments for the third brood are almost over. The second and final treatments are due in southern counties by this weekend. The first sprays for this brood are due in northern counties by this weekend. As with the previous generations, timing for the third generation depends on the type of material that is used. Application timings are as follows:

 

OFM 3rd Generation Timing
Insecticide Type
County/Region Degree Days by 7/20 base 45 Conventional

Target – 2100-2200, 2450-2500

Intrepid / IGRs

Target -2050-2100, 2400-2450

Diamides (Altacor, Exirel

Target – 2025-2150, 2375-2450

Gloucester – Southern 2366 1st – past

2nd – 7/22-7/24

1st – past

2nd – 7/21-7/22

1st – past

2nd – 7/20-7/21

Hunterdon – Northern 2047 1st – 7/22-7/24

2nd – 8/3-8/4

1st – 7/21-7/22

2nd – 8/2-8/3

1st – 7/20-7/21

2nd – 8/1-8/2

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Fruit IPM for 7/13/17

Peach:

Oriental Fruit Moth (OFM): The 3rd OFM flight is well underway in all counties. These adults produce 3rd brood of larvae, which primarily infest the fruit.

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