EXPERIMENT STATION BULLETINS. 



r»19 



Plant Lice of several kinds; infest (he ai)ple tree, but their effect on 

 the fruit depends largely on weather conditions. Tlie red-bus is also 

 now well distributed over Uw State 



The eggs of Ixdli these insects are 



Fig. 1. — Eggs of plaut-lice ou apple-twigs. 



hatched out by the time tlie buds turn pink, and at that time the plant- 

 lice are easily killed and the adults of the red-bug are unable to fly. If 

 either the rosy-louse or the red-bug is strongly suspected of being present, 



Fig. 2. — Apples stunted and deformed by rosy-lice and green-lice. 



ai)[)ly a spray of nicotine snlphate, u.sing a pint of Black Leal" ill, or of 

 some other 40% nicotine-sulphate, to 100 gallons of water, adding l! or 

 3 pounds of soap to the mixture; or else add a pint of the 40% nicotine- 

 sulphate to 100 gallons of Bordeaux or dilute lime-snlphur. Stir the 



