or 1 pound of trichlorfon (Dylox) per acre- -directed as a spray at the base of 

 the plants. For best results, use at least 20 gallons of water per acre, and 

 cultivate immediately to cover the spray deposit. 



If replanting is necessary, apply and disk- in 3 pounds of aldrin or heptachlor 

 per acre (heavier than normal rates are needed for the larger worms) for corn. 

 Do not use aldrin or heptachlor if soybeans are to be planted, or on dairy farms. 

 On dairy farms, broadcast and disk- in 2 pounds of actual diazinon per acre to 

 control cutworms. 



Corn borer moth emergence has reached 30 to 60 percent and egg laying has started 

 in southern sections. In the central section, approximately 30 to 80 percent of 

 the borers have pupated and first -emergence occurred this week. In northern sec- 

 tions, pupation is just beginning. 



In general, first -generation corn borers are not expected to be a problem in the 

 southern third of the state. Corn borer development is slightly ahead of normal 

 and corn is delayed; this will result in low survival of the borers. In the area 

 west of a line from Savana, to Pontiac, to Petersburg, to Edwardsville (where high 

 overwintering populations exist) , borer development is delayed to about the same 

 extent as corn. This could still result in good survival of first -gene rat ion corn 

 borers on the early planted corn. Be prepared to examine these fields in late 

 June and early July for borer feeding. Strong winds or beating rains during the 

 time of peak moth flight could still reduce the corn borer threat in this area. 



Soybean Insects 



Bean leaf beetles continue to feed on the leaves of newly emerging soybeans in 

 southern sections; damage is not yet severe. If control becomes necessary, apply 

 1 pound of carbaryl (Sevin) or 1 1/2 pounds of toxaphene per acre. 



Homeowner Insect Problems 



In southern sections, bagworm hatch will be com- 

 plete by the end of this week (June 3) . Spraying 

 is effective after this time. 



In central sections, the target date for spraying 

 is after June 15; in northern sections, after 

 June 30. Make plans to apply treatments early 

 this year, while the worms are small and easy to 

 kill and before damage is evident. Carbaryl (Sevin), 

 malathion, diazinon, or lead arsenate is effective. 

 Follow label directions and check the plants that 

 may be injured if sprayed with the insecticide 

 you are using. 



Aphids are now abundant on some flowers and shrubs. 

 Aphids suck the sap from the plants causing leaves 

 to curl, turn yellow, and eventually brown if 

 severe. They secrete a sticky substance called 

 "honey dew" and deposit it on leaves. Apply mala- 

 thion or diazinon thoroughly and with force as a 



