SMALL GRAINS 



Flights of true armyworm moths continue from states to the south. These moths are 

 laying their eggs in grassy areas and in thick, rank stands of wheat, barley, and rye. 

 Small worms were found in southern and south-central sections this week. Cool, wet 

 weather favors the development of this insect. 



Do not confuse the striped armyworms with the transparent yellow-to-green sawflies . 

 An armyworm has five pairs of abdominal prolegs ; sawflies, six or more pairs. Sawflies 

 were found in many wheat fields this week. They do not damage wheat plants enough to 

 require control. 



Treatment is justified if there are six or more armyworms per foot of drill row, as an 

 average over the field. Applications of 1 to 1-1/4 pounds of malathion, 1 pound of 

 trichlorfon (Dylox) , 1-1/2 pounds of carbaryl (Sevin) , or toxaphene will control army- 

 worms. Do not apply carbaryl on small grains after the boot stage. Do not feed 

 forage or straw treated with toxaphene or trichlorfon to dairy cattle , livestock 

 being fattened for slaughter, or poultry. There is no waiting period between the 

 application of toxaphene and grain harvest; a week is required when applying malathion, 

 21 days for trichlorfon. 



HOMEOWNER 



Aphids are already appearing on some shrubs and trees. These small, soft-bodied in- 

 sects (green-yellow, black, or red) suck the sap from terminal leaves, causing them 

 to curl. You can control them by spraying the foliage thoroughly, using 2 teaspoons 

 of 50- to 57-percent malathion or 25-percent diazinon emulsion concentrate per gallon 

 of water. Do not use malathion on African violets or cannaert red cedar. Do not use 

 diazinon on ferns or hibiscus plants. 



Tent caterpillars are feeding on a variety of trees. Two kinds, the eastern tent and 

 forest tent caterpillars, are active right now. The forest tent caterpillars make no 

 tent. Many worms (2 inches long) are now reaching maturity, and will stop feeding 

 and spin cocoons- -usually on the tree trunks. If most of the worms are large, no 

 insecticide treatment is needed. If most of them are still 1/2 to 1-1/2 inches long, 

 they can be controlled by spraying with carbaryl (Sevin) , using 2 tablespoons of the 

 50-percent wettable powder per gallon of water. 



Mosquitoes have become bothersome in many areas because of the wet weather. These are 

 mainly the so-called "floodwater" mosquitoes. They breed in back-water areas or in 

 the water standing in drainage ditches, low lands, and other temporary water-pool spots, 

 Floodwater, or "temporary-pool," mosquitoes move from outlying to urban areas, and are 

 more difficult for the individual homeowner to control . 



To help reduce mosquitoes in home yards, follow these steps: (1) Eliminate standing 

 water in such places as eave troughs, old tires, tin cans, childrens' toys, storm 

 sewers, etc., (2) Apply a water-base spray containing 1-percent malathion (2 ounces 

 of 50- to 57-percent liquid concentrate per gallon of water) to shrubbery and tall 

 grass. Repeat the treatment every week or two if needed., (5) Keep the screens on 

 doors and windows in good repair., (4) Hang plastic resin strips (2 by 10 inches) 

 containing 20-percent dichlorvos (DDVP)--one strip per 1,000 cubic feet of space, or 

 about one per room. These strips will kill mosquitoes and flies for 4 to 6 weeks. 

 Do not use these strips in kitchens or other areas where food is handled. Do not 



