PEA AND BEAN INSECTS 



79 



Illinois the insects {ip{)ear the middle of May, become abundant 

 in July and are found on the plants until October. The eggs 

 have not been described. The nym})hs are pale green in 

 color with darker wing-pads. The insects are found in all 

 stages on the upper side of 

 the 'leaves. They feed by 

 ])uncturing the leaves and suck- 

 ing out the sap, thus caushig 

 small round yeUowish or whitish 

 spots. The number of gen- 

 erations a year has not been 

 definitely determined but there 

 are prc)bably more than one. 



Control. 



When present in sufficient 

 numbers to warrant the trouble 

 the garden flea-hopper may be 

 destroyed by spraying with 

 "Black Leaf 40" tobacco extract, 1 ])int in 100 gallons of 

 water to which 5 or pounds of whale-oil soap have been added. 



Fia. 50. 



The {fardoii fU'a-liopper, 

 nuik' (X 1<)). 



Reference 

 U. S. Div. Fnit. Bull. 19, pp. 57-()2. 1899. 



The Pea Moth 



Grapholita niqricana Stephens 



The pea moth is a Eiu'opean insect introduced into Canada 

 some time before l<S9o. It is now distributed throughout 

 eastern Canada, being especially injurious in the maritime 

 provinces, and was reported as destructive in Michigan in 

 1908. The moth has an expanse of about f inch. The^front 



