:ii;! Report of tup: Department of Entomology. 



stage, and the mature or winged forms normally appear about the 

 second or third weeks of this month. The adults remain on the 

 trees among the succulent growth and on the fruit for a short time 

 after their emergence and then disappear from the orchards. 



CONTROL OF INSECT IN PEAR ORCHARDS. 



As injury occurs within a short period after fruit has set the orchard- 

 ist should examine his trees carefully, commencing with the dropping 

 of the petals, to note conditions with respect to the nymphs. If 

 they appear to be numerous he should resort to spraying to protect 

 the crop. Taking one season with another an application just after 

 the blossoming period should afford adequate protection. Treat- 

 ment should not be delayed until injuries commence to show on the 

 young fruits. In the Station's spraying tests Black Leaf 40, using 

 three-fourths of a pint of the extract to one hundred gallons of water 

 to which are added three pounds of soap, has given the most satis- 

 factory results of the various mixtures which have been tried. In 

 applying the spray the trees should be drenched, special pains 

 being taken to wet both surfaces of the leaves. Some growers 

 have combined the nicotine extract with dilute lime-sulphur con- 

 taining arsenate of lead as applied for codling moth with equally 

 satisfactory results on both insects and foliage and by this means 

 avoided the necessity for an extra spraying. But as there is danger 

 of burning pear foliage by drenching the trees with lime-sulphur, 

 we would advise as a general recommendation a special treatment 

 with nicotine and soap to combat this pest. 



