REPORT OF THE STATE ENTOMOLOGIST IQIO 4I 



NOTES FOR THE YEAR 

 The following are brief notices of some of the more injurious 

 or interesting species which have been brought to our attention 

 during the past year. 



FRUIT INSECTS 



Pear slug (Eriocampoides limacina Retz.) . This 

 insect very frequently occurs upon cherry and pear foliage in 

 midsummer. The slug, only about one-half an inch long when full- 

 grown is easily recognized by the slimy secretion covering an 

 apparently olive colored or blackish, sluglike body, the anterior 

 portion being distinctly enlarged. The work of this pest is very 

 characteristic, since it skeletonizes the upper surface of the leaves 

 m.ore or less completely, the injured portion soon drying and 

 turning brown. This species was unusually numerous the past 

 summer in the vicinity of Kinderhook, N. Y., and extraordinarily 

 abundant in the outskirts of Albion. The insect • winters in the 

 ground, the small, black, 4- winged, many veined sawflies, only 

 about one-fifth of an inch long appearing in early spring and de- 

 positing their eggs singly in a slit through the upper surface of the 

 leaf. The eggs hatch in about two weeks, the voracious slugs 

 completing their growth in about twenty-five days. There are two 

 generations, the larvae of the second usually being the more abun- 

 dant and frequently occurring in numbers during July and early 

 August. 



It is comparatively easy to control this pest when necessary by 

 spraying with a poison, since the somewhat sensitive slugs feed 

 upon the upper surface and are therefore easily destroyed. One 

 pound of arsenate of lead (15 per cent arsenic oxide) to 100 gallons 

 of water would probably be sufficient, since paris green has been 

 recommended at the rate of i pound to 250 gallons of water. The 

 poison may also be applied dry or the slimy slugs destroyed by 

 liberal, and if necessary, repeated applications of dry materials, 

 such as air-slaked lime, land plaster, or even road dust. 



Cigar case bearer (Coleophora fletcherella 

 Fern.) Very few specimens of this destructive leaf miner were 

 observed in apple orchards in the towns of Byron and Stafford, 

 Genesee county, though it was quite abundant in some sections the 

 preceding year and has been responsible, in part at least, for the 

 practical destruction of several orchards. A serious infestation 

 by this pest is likely to mean the loss of a crop, since the voracious 



