IPM Update 8.7.20

Cucurbit downy mildew verified in NYS – https://cdm.ipmpipe.org/

 

Tomato Brown Rugose Fruit Virus – APHIS actions to restrict it:

USDA’s Animal and Plant Health Inspection Service (APHIS) is working with State departments of agriculture and producers to conduct a tomato brown rugose fruit virus (ToBRFV) survey of U.S commercial greenhouses that produce tomatoes. APHIS and cooperators are also putting in place official control measures to further safeguard U.S. agriculture against this virus. This decision follows the confirmation of several isolated detections of ToBRFV in U.S. commercial greenhouses last winter.

ToBRFV can cause severe fruit loss in tomatoes and peppers. It is easily spread by contaminated tools and hands, and through plant-to-plant contact. Symptoms include mosaic patterns on plant leaves or fruit with brown or yellow spots. ToBRFV can remain viable in seeds, plants debris and contaminated soil for months.

Michigan State article on how to avoid and deal with it – https://www.canr.msu.edu/news/tobrfv-a-new-concern-for-tomato-and-pepper-producers

APHIS urges U.S. tomato, pepper, and eggplant producers, the nursery transplant industry, and the seed industry to report any signs of symptoms to their State Plant Regulatory Official. (For NYS – Christopher.Logue@agriculture.ny.gov)

For more information about ToBRFV, please visit the APHIS website.

 

From Rutgers

Two-spotted spider mites (TSSM) are now a common occurrence in tomato fields with this stretch of prolonged hot weather.  These pests can build to high populations quickly and are a particular nuisance in high tunnels.  Check two complete leaves each on 5 consecutive plants in 10 random locations in a planting.  Look for the characteristic mite “stipple”, or whitish pin spots on the upper surface of the leaf. A check of the underside of the leaf should reveal the actual mites.  Be sure to take some samples from field or tunnel edges as this is often where TSSM will enter the planting.