|
There are two generations of bean leaf beetle per year in Missouri. ... The bean leaf beetle, Cerotoma trifurcata (Forster), is one of the most important soybean pests in the United States. It is tied for second among all pest species attacking soybean foliage, pods and seeds. This insect was once an infrequent soybean pest...
|
extension.missouri.edu/publications/DisplayPub.aspx?P=G...
extension.missouri.edu/publications/DisplayPub.aspx?P=G7150
|
|
|
|
Provides information on the Bean Leaf Beetle, including identification, biology, damage, and management. For the home gardener. Includes a color photo. ... The bean leaf beetle, Cerotoma trifurcata, is an occasional pest of snap beans (formerly called string beans or green beans) in home gardens in Minnesota. It is also...
|
www.extension.umn.edu/distribution/horticulture/M1185.h...
www.extension.umn.edu/distribution/horticulture/M1185.html
|
|
|
Entomology Image Gallery > Beetles > Bean Leaf Beetle ... Bean Leaf Beetle Feeding; Bean Leaf Beetle; Bean leaf beetle (red phase); Several color phases of the bean leaf beetle; Bean leaf beetle (red phase and yellow phase); Bean leaf beetle parasitized by fungus;
|
www.ent.iastate.edu/imagegal/coleoptera/beanlb/beanleaf...
www.ent.iastate.edu/imagegal/coleoptera/beanlb/beanleafbeetle_composite.html
|
|
The bean leaf beetle often has four rectangular spots in the center of the wing covers ... Bean Leaf Beetle; Sampling bean leaf beetles; Counting Bean Leaf Beetle; Bean leaf beetle without spots; Bean Leaf Beetle (red phase); Bean leaf beetle (yellow phase); Bean leaf beetle; Bean leaf beetle (yellow phase);
|
www.ent.iastate.edu/imagegal/coleoptera/beanlb/1343.36b...
www.ent.iastate.edu/imagegal/coleoptera/beanlb/1343.36beanleafbeetle.html
|
|
We found our first bean leaf beetle of the year on April 23 on the Iowa State University campus, which means that bean leaf beetles are beginning to leave overwintering sites in search of food.
|
www.ipm.iastate.edu/ipm/icm/2002/5-6-2002/blbearlyman.h...
www.ipm.iastate.edu/ipm/icm/2002/5-6-2002/blbearlyman.html
|
|
The most reliable character is a small, black triangle between the "neck" and wing covers. This marking is always present and distinguishs the bean leaf beetle from other beetles in soybean.
|
www.ipm.iastate.edu/ipm/icm/2002/7-29-2002/beenleafbeet...
www.ipm.iastate.edu/ipm/icm/2002/7-29-2002/beenleafbeetleid.html
|
|
Distribution - The bean leaf beetle is abundant in the southeastern states particularly in the coastal counties. Its range, however, extends into Canada, New York, Minnesota, Kansas, Texas, and New Mexico. The insect appears to prefer poorly drained clay and organic soils.
|
ipm.ncsu.edu/AG271/soybeans/bean_leaf_beetle.html
ipm.ncsu.edu/AG271/soybeans/bean_leaf_beetle.html
|
|
Damage - Congregating on lower leaf surfaces and on terminal buds, aphids extract plant sap. Leaves curl and pucker and seedling plants may become stunted and die. On lima bean, bean aphids attack terminal leaves, flower heads, and stems of pods.
|
ipm.ncsu.edu/AG295/html/bean_and_cowpea_aphids.htm
ipm.ncsu.edu/AG295/html/bean_and_cowpea_aphids.htm
|
|
For information on economic thresholds and the biology and management of the bean leaf beetle, refer to NebGuide G90-974, The Bean Leaf Beetle in Soybeans. ... View this file in Acrobat PDF format...
|
entomology.unl.edu/instabls/beanlfbt.htm
entomology.unl.edu/instabls/beanlfbt.htm
|
|
