The cucurbit growing season is well under way in New Jersey and the rest of the mid-Atlantic region. Below are links to useful resources for the identification and management of important cucurbit diseases. Diagnosing important diseases in cucurbit crops Cucurbit Powdery and Downy Mildew: A Tale of Two Pathogens The downy mildew forecasting website Preparing […]
Continue reading...July 8, 2022 Dave Schmitt
Tree Fruit IPM Report for July 8, 2022
Peach: Oriental Fruit Moth: A biofix point for OFM was set on 4/11 in southern counties, and on 4/14 in northern counties. The third generation timings are updated below. Insecticide Type County/Region Degree Days by 7/8 base 45 Conventional 2000-2100 2350-2450 Diamide 2025–2150 2375-2450 Gloucester – Southern 1772 1st –7/14-7/16 2nd –too far off 1st […]
Continue reading...July 8, 2022 Thierry Besancon
Recommendations for Under Plastic Mulch Weed Control
Plastic mulch, usually used with trickle irrigation, has many horticultural benefits for summer vegetable crops, and black plastic controls most annual weeds. Mulch does not solve all the weed problems in the field, and creates new challenges for the grower.
Continue reading...July 8, 2022 Thierry Besancon
Update on Status of Dacthal Herbicide
DCPA (dimethyl tetrachloroterephthalate) is a selective preemergence herbicide used for control of annual grasses (foxtail, crabgrass, barnyardgrass, goosegrass, fall panicum) and some broadleaved weeds (purslane, common lambsquarters, pigweeds) in vegetable crops and ornamental turf. Commercial formulations of DCPA include Dacthal® Flowable herbicide. Dacthal® Flowable is labelled for use on the following vegetable and fruiting crop […]
Continue reading...July 8, 2022 Thierry Besancon
Herbicide Plant-Back Restrictions Explained: Purpose and Application
Are you crystal clear on the purpose of plant-back restrictions and on the length of time required between a herbicide application and the planting of your next crop or cover crop? If not, the guidance below should help. It was developed based on a poster presentation made during the 2022 annual meeting of the Weed […]
Continue reading...July 8, 2022 Andy Wyenandt
Phytophthora and Pythium control during wet weather
Most of New Jersey has been plagued by heavy regular rains and pop-up thunderstorms making conditions ideal for pathogens such as Phytophthora and Pythium. Unfortunately, Pythium and Phytophthora blight can be found on most farms in the southern part of the state. Poor crop rotations with susceptible hosts only make matters worse. The Phytophthora pathogen […]
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