GARDEN PLANT-LICE 



tt 



An aphis feeding. jreatly enlarged; 

 Shewing beak through which sap la ex- 

 tracted from tissues of plant. 



Since the fHant sap can not be po?$- 

 oned these pests must be destroyed 

 fcy a spray that kills by contact with 

 their bodies 



Spinach aphj,en!ar?ed; 

 a common garden 

 pest found on 



most vegetable* 



Potato aphis on. 

 potato plant.caus- 

 ing leaves to curl and 

 die.eventualh/ killing 

 entire plant unless 

 cHecksd by spraying". 



When the aphis 

 is found do not 

 wait to find out 

 whether it is g"o- 

 ing"to increase. 



SPRAY 



at once 



taloupe ' 



leaves show- 

 ingcurlinjcaus- 



Spray Use g aunces (j$ p t) f40%nicoUne 



before sulphate inSOgallons of waterto which 

 ^pounds of soap.dwsolved first inajaJ 

 Ion of the water.have been added . 

 TO make one gallon of spray use one teaspoon- 

 ful of nicotine sulphate and an inch cube of soap. 

 Nicotine is a contact poison and the insects must 

 be wet by the spray to be kil led . Be sure to spray under 

 ides of leaves where the aphids live in greatest numbers. . 



^ T *.T, 

 NICOTINE 



SULPHATE 



Use an angle nozzle for 

 under-spraying". 



Youn; o 

 ladybird 



These insects are beneficial 

 ty feeding on the aphis 



FIG. 306. General recommendations and information concerning plant-lice 

 of the garden, as issued by the Bureau of Entomology, U. S. Dept. Agr 



362 



