REPORT OF THE STATE ENTOMOLOGIST 1902 107 



crude petroleum emulsion would be just as effective and on some 

 accounts preferable. 



Corn worm or bollworm, Heliothis armiger Hiibn. This 

 southern species is well known on account of its serious depre- 

 dations on cotton, and occasionally it is brought to notice in the 

 northern states because of injuries to corn or tomatoes. 



Dr M. W. Van Denburg, of Mount Vernon N. Y., reports this 

 species as being unusually abundant in that section, where it 

 occurred on sweet corn during the latter part of August. He 

 states that the larvae eat the succulent husks, the kernels and also 

 the juicy cob, leaving their burrows full of a brownish, moist 

 excrement, in which they seem to be packed. He adds that the 

 larvae occurred in about 10^ of the ears. 



Hessian fly, Cecidomyia destructor Say. The serious 

 depredations of this grain pest were recorded in a preceding re- 

 port; and the statement that practically no harm has been in- 

 flicted during the past season, not even in cases where white or 

 no. 6 wheat was so seriously damaged the preceding year, is 

 worthy of record. 



Pea weevil, Bruchus pisi Linn. This little insect is a spe- 

 cies which occurs somewhat commonly in peas, and its presence 

 is too frequently overlooked or regarded as of comparatively little 

 importance, and those planting a few peas or even growing them 

 on a considerable scale, pay little or no attention to whether the 

 seed is infested by this insect or not. As a matter of fact, this 

 subject is one of considerable importance, particularly in Canada, 

 where the species has caused enormous losses in recent years, 

 and, unless repressive measures are adopted or enforced, it may 

 cause much damage in the United States. Aside from direct 

 injury, it is a well established fact that peas infested by this 

 species have not the commercial value of clean seed, since, as 

 determined by Dr Fletcher, only ll'/, to 20;^ of the infested ones 

 will germinate. This means that where the weevil is at all 

 abundant in the seed, one half to four fifths of it may be worth- 

 less; and purchasers will do well to bear this in mind. The 

 sowing of this seed not only results in a less than normal number 

 of plants, but also aids the propagation of the insect; and it is 

 very probable that a great many of these pests are eaten in green 

 peas — something which is not agreeable to contemplate. 



