ISTew York Agrictjltttral Experiment Station. 459 



emerge varies with the weather conditions. They may appear 

 any time from late in May until late in July. The adults feed on 

 the young quince fruits and possibly on the leaves. The eggs 

 are laid in " little pits " made by the female beetles in the fruit. 

 The eggs hatch in a few days and the grubs feed in the fleshy 

 part of the fruit until full grown when they go into the ground to 

 pass the winter. There is but one brood annually. 



Treatment. — As with the plum curculio, jarring is considered 

 the most satisfactory method of combating this insect. The trees 

 are jarred in the same manner as plum trees for the plum curculio. 

 The " curculio catcher " is mounted on low wheels so that it can 

 be used under the quince trees. As the time when the curculios 

 appear varies, probably with the season, no definite time for be- 

 ginning the work of jarring can be given. The trees should be 

 watched after the last week of May. The presence of the cur- 

 culios will be easily ascertained by a few trials at jarring. If they 

 are found the jarring should be continued as long as they are 

 numerous. 



EASPBERKY DISEASES. 



ANTHRACNOSE. 



(Gloeosporium venetum Speg.) 



Description. — This disease ordinarily makes its first appear- 

 ance on the young canes when they are less than a foot high. 

 Its presence may be detected by the appearance of small dark or 

 purple colored spots, which rapidly increase in size and change 

 from the dark color to the bro^vn or dirty white in the center as 

 the fungus feeds outward in all directions leaving the dead tissues 

 behind. The slightly raised outlines of the spots vary in color 

 from dark brown to bright purple. In severe attacks the spots 

 are so numerous that they soon coalesce and form continuous 

 blotches that may nearly or completely girdle the cane. The 

 effect on the cane is practically the same as if so much bark had 

 been removed with a knife. While anthracnose is preeminently 



