2. Persons not equipped with protective clothing can use a mixture of (1) 3/4 pound of 

 malathion and 3/4 pound of methoxychlor per acre , (2) a mixture containing at least 

 1/2 pound of diazinon and 1 pound of methoxychlor per acre, or (3) 1-1/4 pounds of 

 malathion per acre on days when air temperatures will be above 60° F. for several 

 hours after application. Do not harvest for 7 days after treatment with methoxychlor 

 diazinon, or mixtures of them. There is no waiting period for malathion. 



Pea aphids are becoming more common in alfalfa fields in the southern part of the state. 

 Fortunately, a few lady beetles are also appearing. If these natural enemies of the aphij 

 increase in number, they will help with aphid control. 



CORN AND SMALL GRAIN INSECTS 



True armyworm and black cutworm moths are moving northward from states to the south of us 

 These armyworm moths arrive early and will lay eggs in the grass along fence rows , ditch 

 banks, roadsides, and in pastures where the growth is thick and rank. Soon they will con 

 centrate their egg- laying in rank stands of wheat, barley, and rye. Black cutworms will 

 lay their eggs in cornfields --in the low wet spots, poorly drained portions, and grassy 

 areas. Cool, wet weather favors both armyworm and cutworm development. It is too soon 

 as yet to predict possible problems with these insects. 



HOMEOWNER INSECT PROBLEMS 



Aphids are appearing on hawthorn trees, as well as on other trees, shrubs, and flowers. 

 These small, green, black or red, soft-bodied insects congregate on developing buds and 

 leaves and suck the sap. If aphids are numerous and control appears necessary, spray the 

 foliage with malathion (2 teaspoons of the 50- to 57-percent liquid concentrate per gallo: 

 of water) or with diazinon (2 teaspoons of the 25-percent liquid concentrate per gallon o 

 water) . These sprays will also control mealybugs and help reduce the number of mites . 



Clover mites are still a nuisance in some homes. They scatter out over furniture and on 

 walls, curtains, window sills, etc .- -particularly on the south and west sides of the 

 house. Pick them up with a vacuum cleaner, and/or use a 0.1-percent pyrethrum or 0.5- 

 percent dichlorvos (DDVP) spray from a pressurized spray can for quick knockdown. Before 

 fall, remove all grass, clover, and weeds next to the foundation- - leaving a strip of bare 

 soil at least 18 inches wide. By replanting this strip with flowers such as zinnia, mari 

 gold, chrysanthemum, rose, or salvia, you will prevent problems with clover mites next yei 



WEEDS 

 HERBICIDES AND SOIL ORGANIC MATTER 



The amount of organic matter in the soil influences the performance of many herbicides. 

 Illinois mineral soils vary in organic matter content from 0.5 to 7 percent. 



There are several ways of estimating the organic-matter content of your soils. A chemical 

 laboratory test is the most-accurate one. 



Another option is to use the Color Chart For Estimating Organic Matter In Mineral Soils Ii 

 Illinois, AG- 1941. A third option is to use Bulletin 725, Soils of Illinois. The chart 

 and bulletin are available through your count)'' Extension adviser. V 



1/ They are also available from the Office of Agricultural Publications, 123 Mumford Hall : 

 or the Agronomy Extension Office, N-305 Turner Hall, University of Illinois at Urbana- 

 Champaign, Urbana 61801. 



