12 



The gnisshoppers 1)e('ome full grown late in fTune, and the eggs are 

 laid in the ground during August and September, usualh' in a tirni, 

 hard soil such as that described above. It is evident, therefore, that 

 where large areas of land are left uncultivated and wide strips of 



Fig. 7. — Mdanopliiit diffcrentkUh: youngnymph — enhirgefl (original). 



uncultivated ground grown up in weeds surround the fields, an ideal 

 place is furnished for the grasshoppers to multiply and oviposit; and 

 being too numerous to subsist upon the vegetation there found, the 

 young hatching from these eggs migrate to fields of cultivated crops. 



It has been repeatedly demonstrated that 

 the very best method of controlling such 

 outbreaks is to thoroughh' plow and har- 

 row all land where the eggs are laid in the 

 fall as soon as possible after the}' are de- 

 posited. If this be done serious injur}' will 

 be rare, but if neglected the planter should 

 be prepared to combat the 3^oung as soon as they hatch with the 

 remedial measures above outlined, for they are b}' no means so easily 

 or effectivelj' poisoned when full grown or nearly so. 



The large lubber grasshopper. — In southwestern and west-central 

 Texas the large lubber grasshopper {BrachysfoJa iiia<jna Gir.) (fig. 9) 



'iSB, 



Fiii. 8.— Egg mass of Mdanopliis dif- 

 fercntialis — enlarged (original). 



often occurs in large n\mi])ers and destroA's fields of cotton, as it takes 

 l)ut a short time for one of these huge insects to ruin a plant. The chief 

 damage is done late in May and in June and mostly to cotton, this 

 crop .seeming to be a favorite with them, though the}' are found in 



•223 



