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The toxicity of contact insecticides to seed-infesting insects. Series no. 4. Tests with pyrethrum and malathion on infested maize
by Joubert, P. C.; de Beer, P. R.;
Callno: 05:63(680)
Serial
The toxicity of contact insecticides to seed-infesting insects. Series no. 6. Tests with bromophos on maize
by Joubert, P. C.; de Beer, P. R.;
Callno: 05:63(680)
Serial
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