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SOYBEANS 



Bean leaf beetles are feeding in some soybean fields, on the underside of bean leaves. 

 Unless feeding is severe, no control is needed at this time. Sprays of carbaryl or 

 toxaphene will control these beetles. 



LIVESTOCK INSECTS 



Pasture flies are increasing, particularly in the central and southern sections of 

 Illinois. Horn flies , stable flies , and face flies rob you of milk or beef produc- 

 tion. Don't let flies pick your pocket. Follow these suggestions. 



For control on dairy cattle, apply Ciodrin as a 2-percent oil or water-base spray- - 

 at a rate of 1 to 2 ounces per animal two to four times per week. A 1-percent 

 dichlorvos (DDVP) or a 0.1-percent pyre thrum spray, applied at 1 to 2 ounces per 

 animal each day, can also be used. Pay particular attention to the animal's legs 

 and undersides when spraying. For dry stock and young stock on pasture, or for 

 lactating animals, use a 1-percent Ciodrin, water-diluted spray. Apply 1 to 2 pints 

 per animal, as often as once per week if needed. Ciodrin is the most- effective 

 insecticide for face- fly control. All of the above insecticides provide good con- 

 trol of horn flies and fair control of stable flies. 



To control pasture flies on beef cattle, apply a water-base spray of 0.5-percent 

 toxaphene, using 1 to 2 quarts per animal every three weeks. Toxaphene provides 

 excellent control of horn flies, fair control of stable flies, and poor control of 

 face flies. 



If face flies become a serious problem, use Ciodrin as suggested for dairy cattle. A 

 canvas or burlap head-oiler or back-oiler, saturated with a solution 5-percent tox- 

 aphene in oil, will provide some relief against face flies. Do not apply toxaphene 

 to beef cattle within 28 days of slaughter. 



HOMEOWNER PROBLEMS 



Bagworms are starting to hatch from eggs that overwintered in spindle-shaped bags on 

 trees and shrubs, especially junipers. The newly-hatching worms feed on foliage, 

 grow, and construct their bag. In southern Illinois, the hatch should peak during 

 the first week in June. The peak will hit central Illinois by June 15. In northern 

 Illinois, egg-hatch should be almost complete by the end of June. If treatment is 

 necessary, apply a spray containing carbaryl (Sevin) , diazinon, or malathion. Do 

 not use malathion on cannaert juniper. For best results, apply sprays while the 

 worms are small. 



Grape flea beetles are still feeding on grape leaves. Both bluish-green adult beetles, 

 which jump when disturbed, and their young larvae are commonly found feeding on the 

 new grape foliage, thus stunting the new cane growth. Either carbaryl (Sevin) or 

 malathion sprays or dusts will control this insect pest. 



Bronze birch borer adults, a pest of birch trees, are emerging from under the bark 

 of the upper limbs. The symptoms of bronze borer damage first appear in the tops of 

 affected trees. The upper limbs become weak and die as the borers tunnel under the 

 bark, leaving characteristic raised rings around the limbs. These raised areas may 

 be present on limbs that appear to be healthy, but are infested with borers. If 

 borer symptoms are present, apply treatment during early June with a spray containing 

 dimethoate (De-Fend and Cygon) . ' Follow the directions on the container for mixing 

 the spray. Repeat the treatment two weeks later. Keeping the birch trees in a vig- 

 orous growing condition will reduce the chances of borer injur)'. 



