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Mimeo Report POL 64-3*
POTATO INVESTIGATIONS LABORATORY
October 1, 1963
CABBAGE INSECT CONTROL IN THE HASTINGS AREA
R. B. Workman, Assistant Entomologist
Insecticide recommendations change frequently. Use the latest information
available. Discard old reports. Follow the safety precautions on the insecticide
label at all times. Make sure that agricultural poisons are not taken for home use.
Insecticide coverage is as important as the chemical used. Thorough coverage
means better control at less cost. Check it frequently. High dosages may leave
illegal residues on the harvested crop.
Cabbage aphids and loopers are difficult to control on older plants. Large
leaf surfaces protect aphids from sprays and systemic insecticides do not trans-
locate readily. Large leaf surfaces protect eggs, larvae, and moths of the cabbage
looper. Best coverage is needed at the inner and lower leaf area. Tro nozzles
overhead are essential.
Green peach aphids are found on the bottom leaves. Sprays for cabbage aphids
and worms will give control. Disc cabbage under after the last cutting to prevent
migration to potatoes.
INSECTICIDES RECOMMENDED FOR CONTROL OF CABBAGE INSECTS IN THE HASTINGS AREA
Insect Insecticidel Amount Min. days Notes
(E=Emulsible) per acre to harvest
SDibrom 8E 1 pt. 4 Fast, short activity.
Parathion 4E ;-1 pt. 7-1 pt., 10-1 pt. Regular applications needed.
Aphid Phosdrin 2E 1 pt. 1 Fast, short activity.
SSystox 2E '1 pts. 21 Fast, long activity.
E E 1 2 Stil ll t 1 i r\Si 4est
----M- ---- O,-I
2 Pt. +
i Excellent in looper tests.
Fewer wrapper leaves gives
i ._ ---- --_* a~.---
TIoxaphene BE; 1 pt. lower resid~ues.
Phostrin 2E 1 1~-2 pts.j 1 Higher dosage for loopers.
Toxaphene 8E 1-2 pts. 14 Looper control slipping.
Me Chlordane 8E 2 qts. Preplant soil treatment (spray).
cricket 'Chlordane 8E Preplant drench--4 oz. per 100
S_ __ gals. per 1000 sq. ft.
Corn DDT 2E 2 qts. Do not use DDT or Toxaphene
insects- Parathion 4E ; pt. on corn grow for forage
Budworms Toxaphene 8E il- pts. or ensilage.
lIf other concentrations or formulations
are substituted, adjust the ef.unt
*Revision of Mimeo Report 63-2
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