Rutgers Cooperative Extension
Seasonal updates on ornamental, nursery, and turf pests.
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Rain late last week combined with rising soil temperatures has initiated green-up of some cool-season grasses in central New Jersey. Soil temperatures have been slowing increasing over the last few weeks. Currently, the 24-hour and 5-day rolling averages for soil temperature are 47 degrees F at Hort Farm 2 in North Brunswick, New Jersey. Keep […]
The accumulation of heat units (Growing Degree Days (GDD) will soon begin to increase rapidly in New Jersey as we approach the early weeks of April. If past histories or present-day monitoring indicate the need for interventions, then the best control windows for numerous insect/mite pests are beginning to occur. The following is an incomplete listing of a handful of some of our early-season Christmas tree insect pests that may need to be scouted & possibly controlled. Those included in this blog are the European pine sawfly, Eastern spruce gall adelgid, Cooley spruce gall adelgid, Nantucket pine tip moth, Pales weevil, White pine aphid, & Pine bark adelgid.
After many years, these slow growing Colorado blue spruce trees are close to reaching their peak selling growth stage as Christmas trees. (Photo Credit: Steven K. Rettke, Rutgers Coop. Ext.)
There is a potential for new boxwood blight infections this FRIDAY and SATURDAY throughout much of NJ – especially central regions. Increased temperatures and prolonged periods of leaf wetness will contribute to the spread of boxwood blight infections.
Boxwood Blight risk-model information, considerations, and links:
| Boxwood Blight Risk Assessment as of 3/22/2023 | |||||||||
| Region | Location | CODE | 22-Mar | 23-Mar | 24-Mar | 25-Mar | 26-Mar | 27-Mar | NOTES |
| Southern | Upper Deerfield | NJ50 | Very Low | Low | Low | Infection Risk | Very Low | Very Low | |
| Central | Howell / Freehold | NJ10 | Very Low | Low | HIGH Risk | HIGH Risk | Very Low | Very Low | High prob. of first BWB infections |
| Northern | High Point | NJ59 | Very Low | Very Low | Infection Risk | Very Low | Very Low | Very Low | |
| Please check YOUR LOCAL risk (click here) | |||||||||
(input your area code – select closest weather station – check 7-14 prediction – click on graph / table)
These advisories are general in nature, change rapidly over time, are site-specific…therefore Someone from your business should be using this risk model daily if boxwood is important to your financial stability– In 30 seconds you can have a better idea of boxwood blight (and other pathogen) activity in your immediate area! Please contact Tim Waller if you need help using this service (twaller@njaes.rutgers.edu), we want to help!
Fungicides;
Format: [FRAC code]: Chemical name (Trade names * no endorsement implied, other options exist)
DISCLAIMER: The label is the law, always refer to it for allowable host crops, use-restrictions, application rates, reapplication intervals, re-entry intervals (REI), and mix compatibility information. Production and pesticide information on this site are for private/commercial pesticide applicators and landscape professionals only, and are NOT for home gardener use. Provided materials represent examples and do not cover all possible control scenarios. Trade-names listed do not imply endorsement and are used as examples only. Please contact your local agent or chemical sales representative for more information or to discuss additional pest management options.
Resources
Background on the pathogen:
The updated Pest Scouting Guides are here, and have a few improvements that enable YOU to share what YOU are seeing in the field with RCE.
Please click, download, and print these scouting guides for use at your nursery, landscape, or conifer plantation. Once printed you can scan the QR at the top of document to link back to the digital copy. These are much larger documents than 2022, as they are sorted by GDD, NEW-Insect “Group”, and by NEW-“favored host plants”.
Refer to this post “Obtaining your local growing degree-days (GDD)” for additional information (click here) or contact Tim Waller twaller@njaes.rutgers.edu for help.
It is important to note that the GDD ranges do not replace scouting and that many of these GDD ranges have not been validated in New Jersey and would greatly benefit from local feedback. Therefore you will notice a QR code at the bottom of the cover-page. If you scan this code it will take you to a form that asks for details about pest occurrence, host plants, any observations, and after you submit your comments it allows the user to upload photographs. This is also a great place to leave feedback on what you would like to see in future iterations (such as pictures…).
PLEASE REPORT – pest observations that deviate from the stated GDD ranges in the guides
PLEASE SHARE PICTURES OF PESTS – we are working to develop insect ID pocket guides and other resources for our NJ growers…but we need your help
LONT – Comment and Photo upload REPORTING LINK (click here)
Conifer – Comment and Photo upload REPORTING LINK (click here)
If you would like to interact with the raw data yourself or incorporate it more closely into your businesses needs download this data file (click here) (file will download once clicked!). Please note it is a Microsoft Excel file, that is protected / cannot be modified on all but the two sheets labeled “GDD ACCU”. If you would like help with this or a non-protected file please contact twaller@njaes.rutgers.edu.
Regular updates will be utilizing this resource throughout the 2023 season. Have a great Spring Season everyone.
New Jersey farmers still have time to be counted in the 2022 Census of Agriculture, according to the U.S. Department of Agriculture’s (USDA) National Agricultural Statistics Service (NASS). Although the deadline for submitting the ag census has just passed, NASS will continue to accept completed census questionnaires through the spring to ensure all farmers and ranchers take advantage of the opportunity to be represented in the widely used data.
“My sincere appreciation goes to producers who have already completed the census. We want to partner with New Jersey producers to show the importance of New Jersey agriculture,” said NASS New Jersey State Statistician Bruce Eklund. “There is strength in numbers. The time to do your part is now. There is still time for farmers to respond.”
NASS will continue to follow up with producers throughout the spring with mailings, phone calls, and personal visits. Farmers and ranchers are encouraged to complete their ag census either online at agcounts.usda.gov or by mail as soon as possible.
Federal law under Title 7 USC 2204(g) Public Law 105-113 mandates that everyone who received the 2022 Census of Agriculture questionnaire complete and return it, even if they are not currently farming. The same law requires NASS to keep all submissions confidential, use the information for statistical purposes only, and publish aggregate data to prevent disclosing the identity of any individual producer or farm operation.
If you need a survey code or questionnaire, please contact the USDA, NASS Northeastern Regional Field Office, 4050 Crums Mill Rd., Suite 203, Harrisburg, PA 17112; Phone – 717-787-3904; eFax – 1-855-270-2719; or Email – nassrfoner@usda.gov.
NASS will release the results of the ag census in early 2024. To learn more about the Census of Agriculture, visit nass.usda.gov/AgCensus. On the website, producers and other data users can access frequently asked questions, past ag census data, special study information, and more. For highlights of these and the latest information, follow USDA NASS on Twitter at @usda_nass.
NASS is the federal statistical agency responsible for producing official data about U.S. agriculture and is committed to providing timely, accurate, and useful statistics in service to U.S. agriculture. USDA is an equal opportunity provider, employer, and lender.
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