This week in Fruit IPM:
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Fruit Crops Edition - Wine Grape Section
Seasonal updates on diseases, insects, weeds impacting small fruit (blueberry, cranberry, and wine grape). Fruit Pest Alerts are also available via this category feed.
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July 29, 2015 Hemant Gohil
Winegrape Twilight Meetings: North & South Jersey
Dates: August 12 & 13, 2015
See flyer for locations and agenda.Click to View Flyer
July 23, 2015 Dean Polk
Fruit IPM Report 7-22-2015
Peach
Oriental Fruit Moth (OFM): While overall pest pressure in peaches is very low for oriental fruit moth, we are at the proper time to treat if your farm has trap captures above 6 males per trap. Timing for third brood OFM applications are as follows:
| OFM 3nd Generation Timing | ||||
| Insecticide Type | ||||
| County/Region | Degree Days by 7/22 base 45 |
Conventional | Intrepid/IGRs | Diamides |
| Gloucester-Southern | 2317 | 1st – 7/17-19, 2nd – 7/27-28 |
1st – 7/14-15, 2nd – 7/25-27 |
1st – 7/13-18, 2nd – 7/24-27 |
| Hunterdon-Northern | 2053 | 1st – 7/24-28, 2nd – about 8/5-7 |
1st – 7/22-24, 2nd – about 8/3-5 |
1st – 7/22-23, 2nd – about 8/3-5 |
July 1, 2015 Dean Polk
Fruit IPM Report 6-30-2015
Peach
Oriental Fruit Moth (OFM): We are between 2nd and 3rd generation broods in southern counties, but still treating emerging larvae in northern counties. Growers who have trap counts that are less than 6 moths per trap can skip insecticides that are intended for OFM. If trap counts are higher, then time your sprays according to the following table:
[Read more…]
June 29, 2015 Anne Nielsen
Wine Grape Alert: Assess Protection Against Grape Berry Moth
Grape berry moth is one of the key direct pests of grapes in NJ. Females lay their eggs on the berry and the larvae makes a small entry hole and then feeds inside the berry. Webbing may be observed as the larvae move between berries.
A threshold of 10% webbing has been used in NY grapes.The MSU model predicted degree-day timing for Intrepid or Altacor applications against grape berry moth to be last Thursday in South Jersey (Bridgeton).
Due to the storm and the rains last week, applications may have reduced efficacy or were not able to be applied. If you have a history of grape berry moth pressure, today would be the tail end of timing for conventional materials. These include pyrethroids, like Bifenture or Danitol, or Imidan. Please read the label carefully as Imidan has a long re-entry interval. Also as a reminder, phytoxocitiy has been observed with using “EC” formulations of insecticides, such as Danitol, with Captan.
June 26, 2015 Dean Polk
Fruit IPM Report 6-24-2015
Peach
Oriental Fruit Moth (OFM): Second generation flights are very low in most areas. By all indications this generation should produce much lower pressure than the 1st generation. Any insecticides which are applied now should target this generation. Growers who have trap counts that are less than 6 moths per trap can skip insecticides that are intended for OFM. If trap counts are higher, then time your sprays according to the following table:
[Read more…]
