Apple blossom weevil and its control by D. D. T.
DICKER
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D000818:Animals; D003634:DDT; D005018:Ethyl Chloride; D035264:Flowers; D007306:Insecticides; D027845:Malus; D048889:Weevils
D007306:Insecticides; D005018:Ethyl Chloride; D003634:DDT