Plant & Pest Advisory

Rutgers University | New Jersey Agricultural Experiment Station | Pesticide User Responsibility

August 18, 2021 Kris Holmstrom and Joe Ingerson-Mahar

Vegetable IPM Update 08/18/21

Sweet Corn European corn borer (ECB) moths are still appearing in several locations, but numbers remain very low, and feeding has only occasionally been reported. ECB population maps will resume if second flight catches rise to high enough numbers. The highest nightly blacklight trap catches of ECB for the week ending 08/18/21 are as follows: […]

Filed Under: Organic Production, Vegetable Crops

August 18, 2021 Dean Polk, Dave Schmitt, Atanas Atanassov, Carrie Denson

Fruit IPM for 8/18/21

Grapes: Drosophilds and Sour Rot: As the sugars start to increase in early verities like Chardonnay, be aware of Spotted Wing Drosophila combined with native fruit fly species. These populations increase at this time of year and help spread sour rot. Sour rot will only be present when you also have injured fruit. Fruit splits […]

Filed Under: Blueberry, Fruit, Tree Fruit, Wine Grape

August 13, 2021 Andy Wyenandt

Basil downy mildew reports are increasing in the region

For over a decade, basil downy mildew (BDM) has caused significant losses in basil grown in organic and conventional field and greenhouse production across the United States. At the time of its introduction, there were very few fungicides labeled for its control making it nearly impossible to grow a successful crop in many areas of […]

Filed Under: Vegetable Crops Tagged With: basil downy mildew

August 12, 2021 Melissa Bravo

Grasshopper damage increasing in soybeans and corn

Differential grasshopper populations are heavily feeding on corn, soybeans and unharvested grass fields and waterways in Salem County. Damage is being observed above economic threshold in mutiple fields across the county where the broods are congregating. Reports from producers indicate the brood population was not this bad in 2020 and may be an indication this […]

Filed Under: Field, Forage & Livestock

August 11, 2021 Kris Holmstrom and Joe Ingerson-Mahar

Vegetable IPM Update 08/11/21

Sweet Corn European corn borer (ECB) moths have been captured at more locations over the past week, but numbers remain very low, and feeding has rarely risen to detectable levels. ECB population maps will resume if second flight catches rise to high enough numbers. The highest nightly blacklight trap catches of ECB for the week […]

Filed Under: Organic Production, Vegetable Crops

August 11, 2021 Dean Polk, Dave Schmitt, Atanas Atanassov, Carrie Denson

Fruit IPM for 8/11/21

Brown Rot: Brown rot pressure remains very high. Make sure to alternate fungicide chemistries or FRAC groups. See page 179 of the Tree Fruit Production Guide for the most effective products and Table 7.7 on page 154 for a summary of fungicide efficacy and FRAC groupings reprinted below:

Filed Under: Blueberry, Fruit, Tree Fruit, Wine Grape