Toxicity of contact insecticides to seed-infesting insects : Test with pyrethrum
Joubert, P.C.
Toxicity of contact insecticides to seed-infesting insects : Test with pyrethrum - Pretoria 1965 - 26 p. - No. 39; Africa South Departmen .
Toxicity of contact insecticides to seed-infesting insects : Test with pyrethrum - Pretoria 1965 - 26 p. - No. 39; Africa South Departmen .