Rutgers Cooperative Extension
Seasonal updates on insects, diseases, weeds, maturity dates and cultural practices impacting only tree fruit.
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Peach:
Oriental Fruit Moth: During the previous week we were between the 2nd and 3rd OFM flights on most farms, and just starting the third flight this week. Populations on most farms are low, but the timing in southern counties is now if trap captures exceed 6 moths per trap. See timings in the table below: [Read more…]
From early July through the first half of September, our attention turns to peach harvests. And for disease control, a great deal of focus is on preventing brown rot development in the ripening fruit. Failure to effectively manage brown rot during the first half of the harvest season can set you up for significant yield loss in the second half of the season, especially if rains become frequent. Infected, sporulating fruit from early maturing cultivars provides fuel (inoculum) for infection of the mid- and late-maturing cultivars. Remember, the harvest season is one big epidemic for brown rot.
This article is a continuation of my earlier article titled “Improving your early season peach brown rot control program” (plant-pest-advisorty.rutgers.edu, April 17, 2019). This former publication discussed blossom blight control as well as quiescent / latent infections occurring in young, green fruit. If you haven’t read this article, or forgot much of it, now is a good time to read or review it. I assume you followed the advice of the former article and therefore do not have significant latent infection lurking in your fruit!
Peach:
Oriental Fruit Moth: Second generation timings are updated below. Second flight adults are still flying statewide. Treatments for the second generation have just finished in statewide. Applications for OFM should now be made only if trap captures exceed and average of 6 moths/trap. [Read more…]
Peach:
Oriental Fruit Moth: Second generation timings are updated below. Second flight adults are still flying statewide. Treatments for the second generation have just finished in southern counties, and are going on now in northern counties. [Read more…]
Peach:
Oriental Fruit Moth: Second generation timings are updated below. Second flight adults started this past week in southern counties and are about to start this coming week in northern counties. According to the model, treatments for the second generation should be going on now in southern counties, and should start next week in northern counties. [Read more…]
Recent Rain Patterns and Insecticide Use:
Given our recent periods of rainy weather, many growers are questioning the need for repeated applications, and the weatherability of the materials already applied. Dr. John Wise at MSU has been studying the residual properties of insecticides for a number of years. [Read more…]
