SOME INSECTS ATTACKING THE PEAR, AND THEIR 



CONTROL 



P. ,}. PARROTT 

 Entomologist New York Agricultural Experiment Station, Geneva, X. Y. 



The pear is subject to attack by many 

 of the insects that are injurious to the 

 apple. As is characteristic of all fruits, 

 however, there are certain pests peculiar 

 to it or to which it displays an unusual 

 degree of susceptibility as the pear 

 psylla, the sinuate borer, or the pear 

 thrips. The more injurious species to be 

 considered in the upkeep of a pear 

 orchard may be classified in the following 

 order : 



Insects attacking the trunk and branches. Sinuate borer, 

 round-headed borer, flat-headed borer. 



Insects incrusting the bark. San Jose scale, oyster-shell scale, 

 scurfy scale. 



Insects attacking the blossom buds and fruit. --Codling moth, 

 false tarnished plant bug, pear midge, pear thrips, plum curculio. 

 bud moth, leaf rollers, green fruit worms. 



Insects attacking the foliage. Pear psylla, pear slug, blister 

 mite. 



INSECTS THAT ATTACK THE TRUNK AND BRANCHES 



The Sinuate Borer 



The sinuate borer, Agrilus sinuatus Olivier, which is of Eu- 

 ropean origin, appears to be confined to five or six fruit-growing 

 counties contiguous to the Hudson River in the southeastern part 

 of the state. Its ravages have been of such a character that it 

 has almost discouraged the planting of pears, and it now promises 

 to exterminate the orchards that were established before its ap- 

 pearance in that region. The adult insect is a small copper-col- 

 ored beetle about one-third of an inch long. It makes its appear- 

 ance during the forepart of June and deposits its eggs in depres- 

 sions or crevices in the bark of the trunk or branches. Upon 



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