replanted, try 2 pounds of actual diazinon per acre in a 7- inch band just ahead 

 of the press wheel. 



SPECIAL NOTE TO SWEET CORN PRODUCERS IN SOUTHERN ILLINOIS ESPECIALLY THE SOUTH- 

 WESTERN -AREA 



Corn earworm moths are flying and egg- laying is underway. The eggs are being 

 deposited on silks if present or in whorls. .An average of one egg per silk was 

 found in fields this week. Hatch occurs in about two to three days; therefore, 

 treatments should be made on silking corn at least every 48 hours where whorl 

 feeding is present. One of the sprayer nozzles should be directed down in the 

 whorl . 



For control, use either 2 pounds of actual carbaryl (Sevin) or 1-1/2 pounds of 

 actual Gardona per acre. 



SOYBEANS 



Bean leaf beetles . These are eating holes in the leaves of soybeans. No seriously 

 aamagea rields have been observed or reported. Sprays of carbaryl (Sevin) or toxa- 

 phene are effective. 



FORAGE INSECTS 



Alfalfa weevils . They continue to present some problems. In the southern and south - 

 central sections, the new growth of the second crop is being damaged in some fields. 

 This is being caused by a combination of feeding by the larvae and the new spring 

 adults. Malathion is effective against the larvae, but is not highly effective 

 against the adults. Therefore, use one of the other insecticides suggested in Re- 

 port No. 7. In the central and northern sections a few fields are being damaged. 

 It would be best to cut and remove the crop, then watch the new growth for signs 

 of damage. If the new growth does not green-up in two to four days and worms are 

 present, apply an insecticide promptly. 



GENERAL 



Grasshoppers . They are hatching-out in fence rows, ditch banks, roadsides, and 

 hay fieias. Grasshoppers were more numerous last fall than for several years, es- 

 pecially in the central and southern sections. Hot, dry weather during the next 

 two to three weeks (their peak hatching period) will favor the survival of the 

 "hoppers." If lots of tiny "hoppers" appear in grassy areas, apply a spray of 

 5/4 pound of carbaryl or 1-1/2 pounds of toxaphene per acre. Use carbaryl on hay 

 fields. This will prevent migrations of these same grasshoppers into more valuable 

 crops like corn and soybeans later on. 



INSECTS IN STORED GRAIN 



Wheat harvest is just around the corner and such insects could present a greater- 

 than-normal problem this year, especially the Indian meal moth. Dr. Ralph 

 Sechriest of the Illinois Natural History Survey has confirmed resistance of the 

 Indian meal moth to malathion here in Illinois. Reports of malathion failures 

 in attempts to control this insect have been on the increase since 1969. More 

 are expected this year. 



