|A Powerful New Insecticide for the Organic Grower||
Entrust 80WP® is a new insecticide manufactured by Dow, and it will be available commercially by mid-April 2003. Entrust contains the active ingredient spinosad, which is in the naturalyte class of chemistry. Spinosad is a fermentation product produced by the soil-dwelling actinomycete Saccharopolyspora spinosa.
|Jul 27, 2009||2906-1340|
|Bt Sweet Corn: What Is It and Why Should We Use It?||
Transgenic Bt sweet corn hybrids are a genetically modified organism (GMO) that are the result of combining commercially available sweet corn varieties with genes from a naturally occurring soil bacterium called Bacillus thuringiensis Berliner or Bt.
|Jul 17, 2009||2906-1300|
|Chemical Control of European Corn Borer in Bell Pepper||
The European corn borer (ECB), Ostrinia nubilalis Hübner (Lepidoptera: Crambidae), is one of the most economically important pests of agricultural crops in much of the eastern and central United States.
|Jul 29, 2009||2906-1355|
|Colorado Potato Beetle||
Scientific Name: Coleoptera: Chrysomelidae, Leptinotarsa decemlineata
Size: Adults are ~ 3/8 inch long by 1/4 inch wide; mature larvae are 1/2 inch long.
Color: The adult thorax is orange with black spots and the wing covers have five yellowish white and five black alternating stripes running lengthwise (Fig. 1); the larvae are reddish in color with two rows of black spots along each side (Fig. 2); and eggs are yellow (Fig. 3).
Description: The adult beetle is convex above; larvae are smooth, soft-bodied, and humpbacked; and individual eggs somewhat resemble small sausages standing on end.
|May 1, 2009||444-012|
|Controlling Bean Leaf Beetle on Snap Beans||
In eastern Virginia, the bean leaf beetle (BLB), Ceratoma trifucata (Forster), has caused serious damage to snap beans (Phaseolus vulgaris L.) in recent years.
|Jul 16, 2009||2906-1332|
|Cruiser 5FS: Supplemental Label for Use on Edible Beans||
A supplemental label has been approved in Virginia for the use of Cruiser 5FS (Syngenta Crop Protection, Inc.) seed treatment for beans, both shelled and edible podded. Snap beans and wax beans are included on this label, as well as lima beans, broad beans, blackeyed peas, southern peas, cowpeas, runner beans, asparagus beans, Chinese longbeans, moth beans and yardlong beans.
|Jul 30, 2009||2906-1357|
|Cucumber Beetle Management in Melons||
Cucumber beetles can be a major pest of cucurbit crops in Virginia, particularly cantaloupes and cucumbers. This was displayed in dramatic fashion this spring at the Eastern Shore AREC.
|Jul 21, 2009||2906-1303|
|Management of Aphids in Spinach||
In Virginia, spinach can be a profitable crop to grow and is harvested in the spring and the fall. Aphids, especially the green peach aphid (GPA), Myzus personae Sulzer) (see Figure), can be major pests to spinach production.
|Jul 27, 2009||2906-1338|
|Sampling for European Corn Borer in Bell Pepper||
The European corn borer, Ostrinia nubilalis Hubner (Lepidoptera: Crambidae), is one of the most economically important pests of agricultural crops in much of the eastern and central United States. O. nubilalis is particularly damaging to sweet peppers (Capsicum annuum L.) because it causes direct injury to the fruit, premature fruit ripening, and fruit rot, a result of pathogens such as Erwinia carotovora entering the feeding wound.
|Jul 30, 2009||2906-1356|
|Scouting for Wireworms before Planting Vegetables||
Wireworms are the larval stage of click beetles (Coleoptera: Elateridae). They are worm-like, hard-bodied, and have 3 pair of legs and a distinct head.
|Jul 24, 2009||2906-1329|
|Seed-Piece Treatments for Insect Control in Potatoes||
Tops-MZ-Gaucho is a new seed treatment produced by Gustafson LLC. This product enables potato growers to apply both an insecticide, Gaucho (Bayer Corp.), and a fungicide (Tops-MZ) prior to planting.
|Jul 21, 2009||2906-1310|
|Wireworm Pest Management in Potatoes||
Wireworms are the subterranean larval stage of click beetles (Coleoptera: Elateridae). They are pests of many agricultural crops including corn, sorghum, small grains, tobacco, and various vegetables, but are particularly damaging to potatoes, since the marketable portion of that crop is in the soil. Wireworms are found throughout the world, and species vary greatly across regions. In Virginia, three important pest species of agricultural crops are the corn wireworm, Melanotus communis, the tobacco wireworm, Conoderus vespertinus, and a related species, C. lividus (Fig. 1). A field survey of more than 60 fields in eastern Virginia from 2002 to 2004 revealed that 80% of wireworms collected were the corn wireworm, M. communis. This is the primary soil pest attacking potatoes in Virginia.
|May 1, 2009||2812-1026|