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Downy Mildew of Onion Detected in Vidalia Onion Region

Downy Mildew of Onion (Chris Tyson, Tattnall County Extension Agent) Downy Mildew of Vidalia Onion (Peronospora destructor) was confirmed in the Vidalia Onion growing region on March 19, 2018.  This can be a highly destructive disease, causing serious losses in yield and bulb quality.  Growers need to be aware of its presence…
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Hard Freeze may pose threat of Sclerotinia in Brassicas

Because of the cold weather and freezing temperatures we have been experiencing, Sclerotinia sp. can be a problem in our cabbage, cauliflower, collards and other leafy brassicas. I would recommend a 5-day rotation with following fungicides; (Fontelis; at labeled rate) and (Endura; at labeled rate). Sclerotinia sclerotiorium usually begins on the lower…
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Whiteflies and freezing temperatures (by Stormy Sparks)

To address questions about whiteflies and freezing temperatures, Dr. David Riley recently sent the following information. Based on the reference: OVERWINTERING AND COLD TOLERANCE OF BEMISIA-ARGENTIFOLII (HOMOPTERA, ALEYRODIDAE) IN COASTAL SOUTH-CAROLINA By: SIMMONS, AM (SIMMONS, AM); ELSEY, KD (ELSEY, KD), JOURNAL OF ENTOMOLOGICAL SCIENCE, Volume: 30  Issue: 4  Pages: 497-506….
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The UGA Cucurbit Research and Extension Group Meeting held at Tifton, GA

Extension specialists, research scientists and extension agents working on cucurbits had a planning meeting on prioritizing research and extension needs for our cucurbit growers. We identified four important issues currently in GA: Whitefly and whitefly transmitted viral diseases (cucurbit leaf crumple and cucurbit yellow stunt disorder virus), Fusarium wilt of…
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Downy mildew on cabbage detected in Georgia

Downy mildew of cabbage has been detected from Colquitt County in Georgia (Oct 22, 2017). These observations indicate that inoculum of downy mildew is currently in GA and under favorable conditions (cool and wet conditions) potential disease outbreak in cabbage and other cruciferous/cole crops can occur. I would suggest our growers to look for the downy mildew symptoms in…
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Insecticides for pepper weevil (by Stormy Sparks)

Pepper weevil has become a severe pest in multiple fields in south Georgia. The pest is present in damaging numbers in both pepper and eggplant fields. One field visited last week proved to have the worst infestation I have ever seen in pepper. A severe infestation was also seen in…
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