Table 4.-Recommendations on control of aphids and grass worms by insecticides (32).

Insect Material Amount/Acre Restrictions and Remarks

Aphids 15% parathion WP or 1-2 lbs. The amount of insecticide per acre varies with the height
 Several species 1% parathion dust or 20-30 lbs. and density of the grass. DO NOT apply parathion within
 40% TEPP (liquid) or %1 pint 7 days, or TEPP within 2 days, or phosdrin within 1 day
 5% malathion dust or 20-30 lbs. of grazing by dairy or beef animals. No waiting period
 25% malathion WP or 2-4 lbs. for malathion.
 25% phosdrin EC or 1-2 pts.
 2% phosdrin dust 15-25 lbs.


Armyworms 10% toxaphene dust or 15-20 lbs. DO NOT graze dairy cattle on toxaphene treated pastures.
 Grass loopers 40% toxaphene WP or 3-4 lbs. Allow at least 7 days between applications of toxaphene
 Other 5% Sevin dust or 20-30 lbs. and grazing by beef animals. DO NOT apply parathion
 Caterpillars 80% Sevin sprayable or 114-2 lbs. within 7 days or phosdrin within 1 day of grazing by dairy
 2% phosdrin dust or 20-25 lbs. or beef animals. There is no time limitation for grass
 25% phosdrin EC or 1 quart treated with Sevin or malathion for dairy or beef animals.
 2% parathion dust or 15-20 Ibs.
 15% parathion WP 2 lbs.

WP = wettable powder; EC = emulsifiable concentrate.


 RESIDUES AND PRECAUTIONS
The use of insecticides not recommended or in dosages greater than recommended may result in insecticide residues in excess of legal
tolerances. If the dosages recommended in the chart are exceeded, the minimum days between last application and harvest or
grazing are not applicable and a longer interval should be allowed.


All insecticides are poisonous to man and animals and should be handled with the precautions given on the insecticide label.
TEPP, parathion, phosdrin, and demeton (Systox) are especially toxic.
The use of trade names in this insecticide recommendation is solely for the purpose of providing specific information. It is not a guarantee or warranty of
the products named and does not signify that they are approved to the exclusion of others of suitable composition.