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NEW INSECTICIDE SHOWING GOOD ACTIVITY ON WHITEFLY ADULTS

A newly registered insecticide, PQZ, from Nichino America has shown good efficacy against the adult stage of silverleaf whitefly in multiple small plot tests in the last few weeks. While overall efficacy has not been fully evaluated, the activity on adults has appeared equal to Sivanto, which has been considered…
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WHITEFLY NUMBERS AHEAD OF 2018

Dr. Apurba Barman has been running a line of yellow sticky traps throughout southern Georgia for almost two years. These small traps are placed along roadways and changed and counted weekly. The trap lines include 125 locations stretching from Dothan, Alabama, to Reidsville, Georgia. The data collected from these traps…
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Cucurbit leaf crumple virus detected on snap beans at UGA, Tifton

We have  recently confirmed Cucurbit leaf crumple virus (CuLCrV) on snap bean at UGA, Tifton, GA. The symptoms  include crumpling, curling, yellowing and chlorosis of leaves. Infected plants appear stunted with distorted growth. Disease symptoms can be severe and may result in yield losses.  The virus spreads by whiteflies in a persistent manner. Current projections…
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PEPPER WEEVIL – Fall 2019

While some growers were successful managing pepper weevil this spring, others were not. PEPPER WEEVIL IS NOT A PEST YOU WANT TO GET BEHIND ON. Weevils can enter a field and feed on foliage as soon as it is transplanted (or before in the greenhouse), but they cannot reproduce until…
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WHITEFLY INSECTICIDE OPTIONS

Whitefly have been building for several weeks and are at high levels in some areas. Insecticide options for whitefly have not changed a great deal in the last year. The cornerstone chemistries for whitefly are still the Group 4 (Venom, Assail, Actara, Sivanto and pre-mixes containing these prodcuts) and Group…
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Whitefly Situation Could Change Rapidly

We have had reports of whiteflies in multiple locations for some time. Thankfully they have remained low; however, that could change rapidly. In tests on station in Tifton, the whitefly population has increased significantly in the last week or so. We are seeing silverleaf in young squash. Adult counts today…
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New reports of Downy mildew in Georgia: Decatur Co. and Crisp Co.

Downy mildew on watermelon was confirmed on May 24 and May 27 from Decatur and Crisp Co.  I would suggest our cucurbit growers to look for the downy mildew symptoms in their fields. Also, please advice your growers to include “Downy fungicides” in their weekly spray. Specifically on watermelon, please use following fungicides on…
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