BEAN AND PEA INSECTS 10= 



OTHER INSECTS INJURIOUS TO BEETS AND 

 SPINACH 



Beets, especially sugar beets, when grown under 

 field conditions, are subject to the attacks of a large 

 number of insects, many of which (40) are seri- 

 ously injurious. The pests of garden beets are not, 

 in the experience of the author, very numerous or 

 very serious. 



Beet aphis (Pemphigus betce). 



Sugar-beet webworm (Loxostege sticticalis) , 



Beet army-worm (Laphygma exigua). 



Striped beet caterpillar (Mamestra trifolii). 



Flea beetles (several sps.). 



Beet leaf hopper {Eutettix tenellus). 



Blister beetles (several sps.). 



BEAN AND PEA PESTS 



Pea weevil ^^ (Mylabrtts pis or urn) 

 Order — Coleoptera 



Seed peas are often found with a hole in each due 

 to the pea weevil; the weevil is about 1-5 of an inch 

 in length and marked with brown and white spots ; 

 passes winter as an adult and lays eggs singly in 

 spring on pods in field; on hatching larva bores 

 through pod and into the pea; every pea in a pod 

 may be infested; the larva matures inside of the 

 pea and the life cycle lasts from 40 to 50 days, de- 

 pending on season ; one generation a year. 



Control — Hold peas over one season, so that 

 they will become freed of weevils ; do not plant wee- 

 villy seed; plant late; fumigate seed with Cs2. 



26 Chittenden— U. S. Dept. Agr., Yearbook 1898. 



