Disease Management
Featuring corn, soybeans and small grains, Delaware's commercial field crops are an important local industry.
Disease Management
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ALFALFA WEEVIL CONTROL IN ALFALFA
The alfalfa weevil (AW) overwinters in both the adult and egg stages. Although egg laying occurs in the fall and spring, larvae hatching from spring-laid eggs cause the most damage. Eggs are laid in the alfalfa stem any time temperatures are above 48 degrees F.
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ALFALFA WEEVIL CONTROL IN ALFALFA (Section 2)
The alfalfa weevil (AW) overwinters in both the adult and egg stages. Although egg laying occurs in the fall and spring, larvae hatching from spring-laid eggs cause the most damage.
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APHID CONTROL IN SMALL GRAINS IN THE SPRING
The most common aphid species found in Delaware small grain fields are the English grain aphid, bird cherry-oat aphid, corn leaf aphid, and the greenbug. These four species can overwinter on small grains as eggs or as females which give rise to offspring in the spring.
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