There have been no new reports of late blight in New Jersey or surrounding region over the past week. Importantly, now that late blight has been found in the region the threat for it to reappear will remain if weather conditions become favorable once again. The hot, dry weather forecasted this week should help reduce threat level for late blight developement.
Cucurbit Downy Mildew Found on Cucumber in Northern New Jersey
Cucurbit downy mildew was found in a research plot near Pittstown in northern New Jersey this week . All cucurbit growers should scout their fields on a regular basis and should add a downy mildew specific fungicide to thier weekly fungicide maintenance program. For current 2013 Cucurbit Downy and Powdery Mildew Management Guidelines please see post from 6/7/13. Additional information on the control of cucurbit downy mildew can be found in the 2013 Commercial Vegetable Production Recommendations.
Vegetable Briefs and Updates – 7/4/13
- Cucurbit downy mildew was reported on cucumber in Salem County on 7/3. This is the first report of CDM in the state this year. All cucurbit growers should scout on a regular basis and add a downy mildew specific fungicide to their regular maintenance program. To track cucurbit downy mildew in the US please visit http://cdm.ipmpipe.org/
- Late blight was found on potato and processing tomato in Salem county on 7/2. All potato and tomato growers who have not initiated a protectant fungicide program should do so. All growers should consider adding a late blight specific fungicide to their program as long as the current weather pattern sticks around. To track late blight in the US please visit http://usablight.org/
- Timber rot (AKA white mold) and Botrytis (AKA grey mold) have been reported on field-grown tomato this week. [Read more…]
Cucurbit downy mildew found on cucumber in New Jersey – 7/3/13
Cucurbit downy mildew was found in a commercial cucumber field in Salem County in southern New Jersey today. This is the first report of cucurbit downy mildew in the state this growing season. All cucurbit growers should scout their fields on a regular basis and should add a downy mildew specific fungicide to thier weekly fungicide maintenance program. For current 2013 Cucurbit Downy and Powdery Mildew Management Guidelines please see post from 6/7/13. Additional information on the control of cucurbit downy mildew can be found in the 2013 Commercial Vegetable Production Recommendations.
Organic growers should scout thier cucurbit plantings on a regular basis and apply an OMRI-approved copper based fungicide or other labeled product to help suppress the development of cucurbit downy mildew. Adequate and repeated spray coverage of the bottom of all leaf surfaces is critical for the control of cucurbit downy mildew in organic cucurbit production. It is important to remember that control of downy mildew begins with planting resistant cucumber varieties when possible. No other cucurbits have resistance to downy mildew.
Late blight found in processing tomato in New Jersey – 7/2/13
Late blight was found in processing tomato in Salem County today. Late blight was found in an organic tomato field in Mercer County last week. All commercial and organic tomato and potato growers in NJ should now consider late blight a significant threat and should take immediate steps. All growers should scout their fields on a daily basis. All commercial tomato and potato growers should include late blight specific fungicides in their regular fungicide maintenance programs. All organic tomato and potato growers should apply OMRI-approved copper based products to help suppress late blight development. As long as the current weather conditions continue, late blight will remain a significant threat.
Late blight found on potato in New Jersey – 7/2/13
Late blight has been confirmed in two commercial potatoes field in Salem County. These are the first reports of late blight on potato in the state. Late blight was found in an organic tomato field in Mercer County last week. All commercial and organic tomato and potato growers in NJ should now consider late blight a significant threat and should take immediate steps. All growers should scout their fields on a daily basis. All commercial tomato and potato growers should include late blight specific fungicides in their regular fungicide maintenance programs. All organic tomato and potato growers should apply OMRI-approved copper based products to help suppress late blight development. As long as the current weather conditions continue, late blight will remain a significant threat.