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EFFECTS OF TWO INSECTICIDAL SPRAY PROGRAMMES ON APHIDS AND THE SPREAD OF POTATO LEAFROLL VIRUS |
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| Authors: | G.N. Foster |
| Abstract: | |
| Keywords: | seed potatoes aphids Myzus persicae Macrosiphum euphorbiae Aulacorthum solani potato leafroll virus deltamethrin demeton-S-methyl heptenophos insecticide mixture insecticide resistance |