112 



PROTECTION OF PLANTS, 1915-16 



(i) The adult beetles prefer to lay their eggs on (1) pastures; (2) small 

 grains; (3) fallow land grown up to weeds; (4) clover and corn; (5) 

 meadow crops (Forbes). 



Lachnosterna rugosa — a, June-bug, adult; 6, June-bug or white grub larva; c, last segment ot 



white grub and larva. 



Regarding methods of control, as with wire-worms, remedial methods 

 are difficult and unsatisfactory, (a) A short rotation in which clover follows 

 grass or is grown at short intervals will prevent the increa e of these insect-. 

 Small grains should follow clover before corn or potatoes, (b) Fall plowing 

 of infested sod. (c) Hogs and poultry will kill large numbers of white grubs, 

 when allowed access to the field being plowed, (d) The adult June beetles 

 can be trapped in large numbers by lanterns set in a basin of water or diluted 

 kerosene. 



Cutworms. 



These are the caterpillars of "miller" moths which are common visitors 

 of lights in August. They are night-feeders and are essentially grass and 

 clover insects, and by far the greater number are bred in pastures and 

 meadows. There are many species, some of which, however, cut off young 

 corn, mangels, cabbages, turnips and tomatoes. 



