-4- 



Dogs and cats serve as a walking lunch counter for fleas; so always dust them once 

 a month during warm periods (May to October) with either 4 -percent malathion or 

 5-percent carbaryl (Sevin) . Apply the dust treatment once or twice during the 

 cooler period (November to April) as a further protection. This will usually pre- 

 vent fleas from becoming a problem. 



In cases of severe infestations in homes, spray lightly over rugs, upholstered 

 furniture, and other infested areas with 0.1-percent pyrethrum from a pressurized 

 spray can. This will give a quick kill of adult fleas. Repeated treatments may 

 be needed, since the spray only lasts a few hours at best. Apply the same dust 

 material used on the dog or cat to their bedding or basket. If a problem occurs 

 outdoors, spray the infested area (usually tall grass and shrubbery beds) with 

 malathion, using 2 ounces of the 50- to 57-percent emulsion concentrate per gallon 

 of water. 



Sod webworm moths are emerging and laying eggs in southern Illinois. Egg laying 

 by these second-generation moths will begin during the last week of July and the 

 first week of August in the central section. 



Large numbers of buff-colored moths flying in a zigzag pattern just above the grass 

 at dusk around shrubs and outside lights means that the caution sign is out. Apply 

 chemical treatments about 2 weeks after a heavy moth flight. 



Damage may occur in lawns that have been kept green by constant watering; moths 

 tend to concentrate their egg laying in such lawns. However, a lawn in poor con- 

 dition will be more seriously affected by an equal number of webworms. Sod web- 

 worm larvae clip the blades of grass just above the sod. Brown spots appear in 

 the turf where larvae are numerous . 



To control webworms, apply 2 pounds of actual carbaiyl (Sevin), 1 pound of diazinon, 

 or 1 1/4 pounds of trichlorfon (Dylox) as a spray per 10,000 square feet. Use this 

 amount in 25 to 50 gallons of water to distribute the insecticide. Do not water 

 the lawn for 3 days after treatment . 



Oystershell scale is in the egg stage in central Illinois. Sprays applied now are 

 ineffective. Treatment for second-generation crawlers is likely to be needed in 

 mid- August. 



Bagworms are nearly fullgrown, and treatments should be applied now if damage is 

 be ing done . Poor control is obtained as the bagworms approach maturity. 



Aphids are abundant on some rose bushes. These are small, green, soft-bodied, 

 sucking insects that congregate on stems and leaves. If the insects are numerous 

 and control is necessary, spray the foliage with malathion (2 teaspoons of 50- to 

 57-percent emulsion concentrate per gallon of water) or diazinon (2 teaspoons of 

 25-percent emulsion concentrate per gallon of water) . 



Leafhoppers are present on marigolds and are causing "hopper burn." If control 

 is necessary, apply carbaryl (Sevin) or malathion as a dust or spray. 



CAUTION: BEFORE APPLYING INSECTICIDES, READ THE LABELS CAREFULLY AND FOLLOW ALL 

 PRECAUTIONS. THIS WILL NOT ONLY INSURE PERSONAL SAFFTY, BUT WILL ALSO 

 PREVENT RESIDUE HAZARDS. 



This weekly report was prepared by H. B. Petty, Steve Moore, Roscoe Randell, and 

 Don Kuhlman, University of Illinois College of Agriculture and Illinois Natural 

 History Survey, in cooperation with the USDA Agricultural Research Service, Plant 

 Pest Control Branch, from information gathered by entomologists and cooperators 

 who send in weekly reports from their own localities. 



