36 



THE APPLE LEAF HOPPER 



When wanted for use. a little water is ])lace(l in pan. and thrown 

 against the eanvas covered frame. The latter is then drenched with 

 kerosene, and al)OUt a quart or less is poured on the water in the 

 pan. The fanner then drives this back and forth over fields of young- 

 grain which is being eaten, and many of the hoppers jump either 

 against the canvas back, or directly into the pan. Many jump out 



Fig. I'.i. Comnion Kect-legged locust or grasshopper, M . femur ruhrum. After RHcy. 



again, but only to die later, as one slight touch of kerosene is all that 

 is needed to kill the insect. Wherever the ground is level and free 

 from stones, it is possible to join two. three or four hopperdozers 

 together by means of ropes, thus making a very long pan. Do not 

 use too much kerosene, and avoid s])illing it, since it is destructive to 

 plant life. The work is best done when the day is bright and warm. 

 Hopperdozers, however, are but a makeshift. They-are of little 



or no value when the hoppers are fully winged. Sometimes many 

 bushels of these }oung pests are destroyed in this way and a crop is 

 saved, but in view of the labor and time involved in this process, we 

 look ujion fall plowing of infested land as the best remedy. Fall 

 plowing is far better than plowing in the spring, since it allows the 

 rain and snow to compact the ground, i'/suring the death of the con- 

 fined insects. 



The stale has jjrovided an emergency fund to be used bv the State 

 Entomologist in fighting grasshoppers, from which, when necessary, 

 in a bad grasshopper year, he can fm'uish kerosene oil in limited quan- 

 tities to farmers wdio own ]i(i])per(i(izers. The method to be fullowcd 



F'ig. '20. r^essor miKratoi-y loi-iist or ginssliopper, .)/ . (illaiih. 



in securing the oil is as follows: ImfsI ])r()cnrc a h(ii)i)er(!ozer, then 

 obtain from ytmr count)- commissioiier an order for oil upon some 

 dealer in your neighborhood. ( )rders in blank form ma\- be issued 

 from this office to the commissioners. I '|)on ])resentation of tliis 

 order at the store, oil will be furnished xon, the dealer keepino' \'our 



