This week in Fruit IPM Peach Apple Pear Blueberry Scouting Calendar Trap Counts (Southern Counties)
Continue reading...April 22, 2014 Brad Majek
Stinger Controls Difficult Composite and Legume Weeds in Blueberries
Stinger has been labeled for weed control orchards for years, and now has a label for use in blueberries. 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 […]
Continue reading...April 22, 2014 Brad Majek
Casoron 4G Weed Control in Established Bearing Cranberry Bogs
Casoron will control most annual broadleaf weeds and suppress or control many perennial broadleaf weeds in cranberries, including redroot. Apply Casoron 4G to cranberry bogs after the winter flood has been removed, but before the vines break winter dormancy and begin to grow.
Continue reading...April 21, 2014 Mark VanGessel
Sorting Out PPO Herbicides
PPO-herbicides (Group 14) used in this area include Sharpen, Valor, Authority, Reflex, Blazer, Cobra, Aim, and Cadet. In addition to the single active ingredients, there are a number of premixes containing these PPO herbicides. This group is quite varied so making generalizations about these herbicides is difficult. PPOs have gained popularity in the past few […]
Continue reading...April 21, 2014 Mark VanGessel
DE, MD Fields with Palmer Amaranth Resistant to Both Glyphosate and ALS-Inhibiting Herbicides
Last fall we collected seed from Palmer amaranth plants in Delaware and Wicomico County, Maryland and tested them for resistant to both glyphosate or ALS-inhibiting herbicides (Group 2). A few of the samples tested positive for resistance to both glyphosate AND ALS-herbicide. We used Pursuit in the initial trials, but past experience indicates that these […]
Continue reading...April 21, 2014 Cesar Rodriguez-Saona
Cranberry Weevil Research
In field evaluations, we demonstrated that yellow sticky traps baited with the blend of four aggregation pheromone components trapped significantly more cranberry weevil adults than un-baited controls. Development of pheromone-based monitoring lures is an important step toward spatially-precise management techniques that may lead to significant reduction in the use of pesticides targeted against cranberry weevil […]
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