ahead of the press wheel. Always handle insecticides with care; be especially 

 careful when handling Dyfonate, Dasanit, and phorate--all are highly toxic in- 

 secticides. Read and follow the precautions on the label. 



Black cutworms are just beginning in a few scattered fields. The recent wet 

 weather should favor cutworm development. Continue to watch the low, poorly 

 drained spots or places where water stood during recent rains for signs of cut- 

 worm damage. Fields treated before planting with a broadcast application of 1-1/2 

 pounds of actual aldrin or heptachlor per acre are the least likely to have problems 



For emergency control, applications of 3 pounds of toxaphene, 2 to 3 pounds of 

 carbaryl (Sevin) , 2 pounds of diazinon (use granules) , or 1 pound of trichlorfon 

 (Dylox) per acre- -directed as a spray at the base of the plants- -will control 

 small worms. For best results, use at least 20 gallons of water per acre; culti- 

 vate immediately to cover the spray deposit. A rain following the treatment will 

 greatly improve control results. 



European corn borer moth emergence has reached 75 percent in the southern section; 

 pupation is about complete in the central section; and it is at the 55-percent 

 level in the northern section. The generally low number of overwintering corn 

 borers (half those of a year ago) make the possibility of serious problems with 

 first-generation borer rather remote. In addition, with the large acreage of 

 early planted corn, moths will be spreading their eggs over many fields rather 

 than just concentrating them in a few. The greatest possibility of injury to a 

 few fields by first-generation corn borer is in the west-central, west, and west- 

 southwest sections- -areas where overwintering populations were highest. Be pre- 

 pared to examine early planted fields in late June and early July in these areas 

 for borer feeding. 



Forage Insects 



Alfalfa weevil populations have leveled off and are beginning to decline as larvae 

 pupate, parasites take their toll, and overwintering adults lay fewer eggs. The 

 new growth of the second crop may still need to be sprayed in some fields. 

 Although larvae will be present and easily found in most fields for several weeks 

 yet, the peak period of damage is over. 



Newly cut alfalfa fields south of a line from Watseka to Hardin should be checked 

 for possible damage. If a field does not green up in 2 or 3 days after cutting 

 and if worms are present, treat it promptly. 



For control of alfalfa weevil larvae, farmers making their own applications should 

 use either malathion or a commercially prepared methoxychlor-malathion or 

 methoxychlor-diazinon (Alfatox) mixture. Commerical applicators can use the above 

 materials or one of the more-toxic insecticides like methyl parathion or azinphos- 

 methyl (Guthion) . Be sure and follow label directions for dosages, harvest limita- 

 tion, and precautions when using insecticides. 



Mead ow spittlebug froth masses are thick; some fields may justify treatment. New 

 seedings of clover and alfalfa in the north and western sections are the most- 

 heavily infested. If there are 1 or more nymphs per stem- -not per plant- -control 

 is profitable. Methoxychlor applied at 5/4 pound of actual chemical per acre 

 gives excellent control. With methoxychlor, there is a 1-week waiting period be- 

 tween treatment and harvest or pasturing of the crop. 



