Plum curculio activity has begun in Southern New Jersey. [Read more…]
Fruit Crops Edition
Seasonal updates on diseases, insects, weeds impacting tree fruit and small fruit (blueberry, cranberry, and wine grape). Fruit Pest Alerts are also available via this category feed.
Subscriptions are available via EMAIL and RSS.
April 20, 2013 Brad Majek
Stinger Labeled for Blueberries
Stinger has been labeled for weed control in stone fruit orchards, including peaches, nectarines, apricots, plums, and cherries. The weeds controlled fall into two botanical plant families, composites and legumes. Common composite weeds found in our orchards include Canada thistle and other thistles, goldenrod species, aster species, common dandelion, mugwort (wild chrysanthemum), horseweed (marestail or stickweed), and ragweed species. Legume weeds include vetch species and clover species. [Read more…]
April 17, 2013 Administrator
Wine Grape Information for the Region – Abridged
From Mark Chien’s Wine Grape Information for Pennsylvania and the Region Apr 15, 2013
http://pawinegrape.com/
Just a few of the topics Mark covers in this issue:
Grape IPM
- Wine Grape Integrated Pest Management Workshop Presentations, March 2013
- Grower Perspective on Post-veraison Problems– Galen Troxell, Galen Glen Vineyard
- Early-season Flower and Cluster Disease Control– Bryan Hed, Penn State
- Late-season Disease Control: cluster rots and downy mildew– Alice Wise, Cornell
- Bird Netting in Vineyards– Libby Tarleton, Cornell
- Wasp and Bee Management in Grapes– Jody Gangloff-Kaufmann, Cornell
- Grape Berry Moth and Spotted Wing Drosophila– Mike Saunders, Penn State
- Brown Marmorated Stink Bug: a new and very important pest of grapes and wine– Joe Fiola, Univ of Md
- Calibrating your Sprayer– Marty Keen, Landey Vineyards
- Development of a Low Cost Vertical Patternator (Part 2) – Marty Keen
- Red Blotch Virus Learning Resources- “If you have vinifera vines that were planted in the past five years that have displayed reddening of leaves, particularly late in the season, they may be infected by the Red Blotch virus. The symptoms are similar to leafroll and growers should study fact sheets to tell the two apart. Red Blotch can severely affect a vine’s ability to ripen its fruit.”
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April 17, 2013 Dean Polk, Dave Schmitt, and Atanas Atanassov
Tree Fruit IPM Report: week ending 4/13/2013
- Peach
- Apple
- Pear
- Scouting Calendar
- Trap Counts (Southern Counties)
April 16, 2013 Dave Schmitt
Disease Alert for Tree Fruit: Fire Blight; Apple Scab
In southern counties there is a significant risk for fire blight from Thursday through the weekend for any Pear or Apple orchards with blossoms open. If your orchards are at risk apply antibiotics at the first opportunity. The forecast rain will also be the first significant scab infection for apples. Growers can personalize their risk by visiting the NEWA website. Enter your zip code and follow the links for fire blight and apple scab. You will be prompted to enter phenology information for your location. Using April 6th for 50% McIntosh green tip, the model indicates approximately 40% ascospore maturity on April 20th for South Harrison Township Gloucester County.
April 12, 2013 Norman Lalancette
Integrated Fungicide Programs for Early Season Apple Disease Control
Early season season disease control on apple, which is defined in this article as the period from 1/2″ green to second cover, consists of simultaneous management of apple scab, powdery mildew, and cedar apple rust. Of these three diseases, the primary target is typically apple scab. During this period, the initial scab inoculum in the form of ascospores infects both leaves and young fruit. [Read more…]
