Large numbers of true armyworm moths have been flying northward within recent days. 

 Be on the lookout during the next week or two for the presence of armyworm larvae 

 in grassy cornfields in the northern section. The worms feed first on the grass and 

 then move to the corn plant. 



For infestations, apply carbaryl (Sevin) or toxaphene at 1-1/2 pounds of actual 

 chemical per acre. Do not feed toxaphene-sprayed corn as forage to dairy cattle or 

 livestock fattening for slaughter . Corn can be harvested as grain without any re- 

 strictions. There are no waiting periods or restrictions for corn treated with 

 carbaryl. 



SOYBEM1 INSECTS 



Grasshoppers have been observed feeding heavily on the marginal rows of soybeans. 

 They have recently moved from fence rows, ditchbanks, and roadsides. Migrations of 

 grasshoppers will continue from these areas particularly if conditions are dry. If 

 large numbers are observed, spray the bordering grassy areas with 3/4 pound of carb- 

 aryl (Sevin) or 1-1/2 pounds of toxaphene per acre. 



FORAGE INSECTS 



Meadow spittlebug adults can be found in clover, alfalfa, and soybean fields. These 

 large, wedge-shaped, tan-to-brown- to-black, leafhopper-type insects (about 1/4 inch) 

 jump with an audible "pop" when disturbed. The females lay their eggs during late 

 August and September in clover and alfalfa fields. These eggs will hatch next spring. 

 The adult spittlebugs will continue to be present in these fields until mid- to late- 

 September. Their feeding is of little importance. 



HOMEOWNER INSECT PROBLEMS 



Sod webworm moths are beginning to appear in increasing numbers, particularly in 

 southern and central sections. These buff -colored moths rest in shrubbery and tall 

 grass during the day and are seen flying in a zigzag pattern over the lawn near dusk. 

 These are the second-generation moths that are laying their eggs at this time. If 

 you find large numbers of these moths in your yard, plan to treat your lawn with an 

 insecticide about 2 weeks later. Usually target dates for treatment are late July in 

 southern sections, early to mid- August in the central section, and mid- to late 

 August in the northern sections. 



The larvae of the webworm are gray worms with brown spots and black heads. They are 

 about an inch long when full grown and live for 5 to 4 weeks in the worm stage. The 

 worms live in silken-lined burrows in the thatch of the lawn, clipping off grass 

 blades at the base. Brown spots appear in the lawn and large numbers of robins will 

 move in to feed on the larvae. By this time, it is usually too late for control. 



For control of webworms, apply a spray or granules of 2 pounds of actual carbaryl 

 (Sevin), 1 pound of actual diazinon, or 1-1/4 pounds of actual trichlorfon (Dylox) 

 per 10,000 square feet. Use about 25 gallons of water to distribute the insecti- 

 cide over the 10,000 square feet when spraying. Do not water the lawn for at least 

 5 days after treatment. If heavy rains occur within 5 days of application, a re- 

 peat treatment may be needed. 



Tomato fruitworms (same as corn earwormj and tomato hornworms are common in tomatoes 

 particularly in southern sections. Tomato fruitworms are more numerous than normal 

 this year, and damage to developing tomatoes will likely be severe during August and 



