MAINE AGRICULTURAL EXPERIMENT STATION. 191O. 379 



Apple Aphids and Work. 



Figs. 30-33 Green apple-aphis; 30, Winter eggs; 31, Winged form; 

 32, Wingless form; 2^, Leaf curl caused by Apple-aphis; 34, Woolly 

 aphis wingless form; 35, Knotty root caused by Woolly aphis. 



(Figs. 30-33 after Quaintance ; 34, 35 after Marlatt; 31, 32 and 34 

 enlarged). 



