Fruit IPM Report 5-27-13 – Click to View | Download | Print
In this report:
- Peach
- Apple
- Pear
- Scouting Calendar
- Blueberry
- Trap Counts
Archives for May 2013
May 29, 2013 Dean Polk, Dave Schmitt, and Atanas Atanassov
Fruit IPM Report: Week Ending 5/27/13
May 28, 2013 Wes Kline and Meredith Melendez
Will The FDA Preventive Control Rules Affect Your Farm?
Proposed Rule: Good Manufacturing Practices and Hazard Analysis and Risk Based Preventive Controls for Human Food.
This is another proposed rule of the Food Safety Modernization Act which will affect some packinghouses, specifically operations that qualified for the FDA Food Facility Registration. Farms are exempt from this rule IF they grow and harvest produce in one general location, do not pack product from other farms and do not cut into the consumable portion of the product.
May 28, 2013 Ann Gould
Fireblight in Ornamental Rosaceae
Recent reports bring to mind that warm and wet spring weather is perfect for development of the bacterial disease known as fireblight in susceptible hosts. Fireblight is caused by Erwinia amylovora, a bacterium that only affects plants in the rose family (Rosaceae). Some common hosts include apple, crabapple, cotoneaster, hawthorn, mountain ash, pyracantha, and pear.
[Read more…]
May 28, 2013 Joe Ingerson-Mahar
Pepper Weevil Alert #2
There are now 6 non-farm locations where adult pepper weevils are being trapped. Traps at 3 farm sites have also caught weevils in the past week, including 2 pepper fields. Large numbers of weevils are being trapped at one of these non-farm sites, 54 in a 4 day period. It is not clear if this represents typical numbers or if this year the number of weevils is exceptional.
May 28, 2013 A.Wyenandt, W.Kline, and J.Ingerson-Mahar
Tomato Disease Forecasting Report 5-28-13
5-28-13 Tomato Report – Click to Download
Disease severity values (DSVs) for early blight, septoria leaf spot, and tomato anthracnose development are determined daily based on leaf wetness (due to rainfall, dew) and air temperature.
On a daily basis DSV values can range from 0 to 4 where 0 = no chance for disease development to 4 = high chance for disease development.
DSVs are accumulated during the production season.Fungicide applications are based on an individually determined DSV threshold. The first fungicide application for the control of these three diseases is not warranted until 35 DSVs have accumulated from your transplanting date. After that, growers can base fungicide applications on different DSV thresholds.
May 28, 2013 A.Wyenandt, W.Kline, and J.Ingerson-Mahar
Potato Disease Forecasting Report 5-28-13
Potato Disease Forecasting Report 5-28-13 – Click to Download
We will be tracking DSVs for Late blight development and calculating P-days for initiating the first early blight fungicide application.
The first late blight fungicide application is recommended once 18 DSVs accumulate from green row. Green row typically occurs around the first week in May in southern New Jersey. An early season application of a protectant fungicide such as mancozeb (Dithane, Manzate, Penncozeb) or Bravo (chlorothalonil) as soon the field is accessible is suggested. Please be vigilant and keep a look out for suspect late blight infections on young plants. No late blight has been reported in our region to date.
Remember the threshold for P-days is 300! Once 300 P-days is reached for your location early blight fungicide applications should be initiated. Growers who are interested in using this model should chose the location above that is closest in proximity to their farming operation and should regularly check the Cornell NEWA website (http://newa.cornell.edu/) where this information is compiled from. Click on Pests Forecasts from the menu, select your weather station, and click on tomato diseases, set accumulation start date and a table of daily and total DSVs will be generated.
