THE CODLIN MOTH. 



The Apple Maggot (Tripeta pmnonella). — This insect has so 

 increased within the past few years as to threaten the total 

 destruction of the Apple crop in some sections. The perfect 

 insect is a small fly, (Fig. 41, b), resembling, the common house 



Fig. 40. 

 fly, Init is much smaller. As the Apjjle ai)i)i(iai-iu's maiurity, tlie 

 fly lays it:i eggs in the fruit hy puncturing the skin. Tl-.e larva, 

 or maggot, (Fig. 41, a), of which there are often several in one apple, 

 make burrows iu all directions, rendering the fruit worthless. 



*ai2B222y 



Fig. 41. 



Remedy. — No remedy but the destruction of the Infected crop 

 by feeding to sNviue or cattle has been discovered as yet. This 

 will be effectual if aU the fruit is destroyed as it falls from the 

 tree. 



The Plum Weevil, or Curculio (Conotrachelus nenuphar). — 

 Fig. 42 — rt, the j»erfect insect, much enlarged; b, natural size, at 

 work upon the plum; e, larvse; d, injured fruit. Until recently, 

 it was generally supposed that all the worms found in the Apple 

 were the larvfe of the codlin moth. My attention was attracted 

 two years ago to the large number of Apples falling from the 

 trees early in the summer. Upon examination it was found that 



