INJURIOUS AND BENEFICIAL INSECTS 



9 



Fig. 5 Eye-spotted 

 bud moth and its cater- 

 pillar 



few days to a week later. Kerosene emulsion is also effective, if 

 applied at this time; 



6 Bud moth ( T m e t o c e r a a c e 1 1 a n a ) . Small brown 

 caterpillars about -J inch long, with black head and thoracic 

 shield, are frequently found eating the young 

 leaves and flowers of apple and pear tree. The 

 parent moth is an inconspicuous, grayish in- 

 sect. The winter is passed by the half-grown 

 caterpillars within almost invisible cocoons at- 

 tached near a bud or rough place in the bark. 



Treatment : spray thoroughly with poison as the buds begin to 



open. 



7 Apple leaf Buccula- 

 trix (Bucculatrix 

 pomifoliella). 

 White, ribbed cocoons 

 about ^ inch long may 

 be seen in clusters on 

 smaller limbs of infested 

 trees. The parent insect 

 is a delicate moth 

 marked with yellowish 

 and brown. The small larvae mine the leaves and later feed ex- 

 ternally. There are two broods annually. 



Treatment: spray infested foliage with poison in early June. 

 8 Rose beetle (Macrodac- 

 tylus subspinosus). 

 Greenish yellow beetles about 

 f inch long appear in swarms 

 in May and attack the foliage 

 of various trees and vines. The 

 young are white grubs and live 

 under ground on grass and the 

 roots of other plants. This in- 

 sect occurs most abundantly on „ „ ^ ^ , 



•^ Fig. 7 Rose beetle: a adult beetle; b larva 



Q aa-rkA-rr cc/^il (reduced after Marlatt. U. S. dep't agr., Year- 



A fedUUy son. book 1895) 



Fig. 6 Apple leaf Bucculatrix: a cocoons on twig; 

 & cocoon enlarged; c moth enlarged 



