-3- 



Leafhoppers disappeared almost as rapidly as the cloverworms. They are very 

 scarce now, even though they were quite abundant in soybean fields a few weeks 

 ago. 



Grasshoppers are abundant in some roadsides, ditches, fencerows, and grass water- 

 ways. In some instances, they have started to migrate into stands of corn, soy- 

 beans, and hay. If large numbers have been observed and are causing damage 

 (especially to soybean pods) , they can be controlled with 3/4 pound of carbaryl 

 (Sevin) or 1-1/2 pounds of toxaphene per acre. This would apply to cornfields, 

 soybean fields, and fencerows. In clover and alfalfa fields, use either 5/4 

 pound of carbaryl, 1/2 pound of diazinon, 1 pound of malathion, or 5/4 pound of 

 naled (Dibrom) per acre. 



Do not feed soybean forage treated with toxaphene to dairy animals, or to live- 

 stock fattening for slaughter. Do not make more than two applications after pods 

 begin to form. 



Treat while the 'hoppers are small and before damage is severe. 



WHEAT INSECTS 



Hessian fly populations are at the lowest level in 10 years, but they could build 

 up rapidly if the weather and farm practices during the next year favor their 

 survival. To keep this pest at its present low level, destroy all volunteer 

 wheat by mid-September. In this way, the adult flies that emerge in late Septem- 

 ber or early October will have no wheat on which to deposit eggs. Also, seed a 

 resistant variety of wheat.. Soft wheats (such as Knox 62 and Benhur) or hard 

 wheat (such as Gage, Scout, Scout 66, and Parker) are suggested by the university 

 of Illinois Agronomy Department as resistant varieties. 



If you seed a Hessian fly -susceptible wheat, observe the date recommended for 

 optimum yields for your community. Even when seeding a resistant variety, it is 

 best to observe the "fly-free" dates. 



HOMEOWNER INSECTS 



Crickets often migrate consideraDle distances at this time of year. They feed 

 on vegetation in uncultivated areas during the summer. Ordinarily, their food 

 supply (in pastures, fencerows, ditch banks, and other grassy areas) dries up 

 in late August or early September. This food shortage --added to their instinc- 

 tive desire to migrate-- results in huge swarms, often suddenly appearing around 

 lights at night. A chlordane spray around the house foundation, the doorways, 

 and the outdoor lights of the home will help reduce the number of these invaders 

 that get into the house. 



Leafhoppers (wedge-shaped, ' sects about 1/4 ppeai 



in great numbers around lights. As with crickets, these insects have been develop- 

 ing all summer; as they mature and their food dries up, they have the urge to 

 migrate. Chlordane sprays will also be helpful here. 



Foundation sprays of 1 -percent i1 i ill 3 p t control the leaf- 



hoppers and crickets, as well as ants, spiders, and roac ting 



into homes this fall. Use emulsifiable concentrate, and dilute with water to a 

 1-percent strength. Spray the foundation of the house to runoff, as well as a 

 4-inch strip of soil alongside the foundation. Spray around doorways and lights. 

 If you plan to spray only the house foundation, use a 2-percent chlordane solution. 



