As we get later into the season, early blight becomes an increasing concern in tomato and potatoes.
Corn earworms counts decreased, but second generation of european corn borer appears in spots
Spotted wing drosophila (SWD) is now being found more frequently in traps across the state, though numbers are still very low (0-3 per trap per week).
This is the first confirmed report of late blight in Pennsylvania in 2013.
Downy mildew was confirmed in a home garden in Bucks Co. and has been reported in a commercial cucumber field in Lancaster Co. PA.
This past week late blight was reported on tomato and most recently potato in New Jersey. Still no confirmed reports of late blight in Pennsylvania.
All sixteen locations for which the Tom-Cast disease forecasting model for early blight are being run have now exceeded the 35 DSVs needed to trigger the first fungicide application on both tomatoes and potatoes.
As of July 9, corn earworm flights picked up in multiple parts of the state.
This article talks about maintaining your drip irrigation system to prevent clogging of emitters and system components.
As of July 2, 2013, corn earworm counts are low. But European corn borer counts rose in 6 counties: Bradford, Montgomery, Centre, Lackawanna, Luzern, and Montour counties have counts above threshold for corn borer. Wide spray intervals should be sufficient, or no spray in some areas.
Many locations across PA have reached the threshold to start a fungicide spray program for early blight.
Last week late blight was confirmed in a commercial tomato field in Mercer Co., NJ which is adjacent to Bucks Co., PA.
With the recent heavy rains across the state, there are an increasing number of reports of Phytophthora blight on peppers and cucurbits.
It is not uncommon to see leaf mold on high tunnel tomatoes but due to the very humid conditions, this disease is also developing in the field.
Are you noticing the leaves on your tomato plants curling? Despite the potential severity of the symptoms, leaf curl does not typically impact yield.
Still no confirmed reports in Pennsylvania.
Cucurbit downy mildew is starting to move further north and was most recently confirmed in Delaware.
Early blight as well as Septoria leaf spot (only tomato) are two diseases that we see to varying degrees every year. The use of disease forecasting models can help time fungicide applications as well as gain a better understanding of the environmental conditions that are conducive to disease development.
As a general rule, vegetable crops require 1 - 1.5 acre-inches of water per week. Penn State's Elsa Sanchez and Bill Lamont explain how to determine how long to run your drip irrigation system to meet this need.