Search Results       Your search for [subject]Helicoverpa armigera -- Control returned 1 record.           Contact toxicity of chemical insecticides on cotton bollworm, Helicoverpa armigera (Hubn.) and aphids, Aphis Gossypii Glover. by Solsoloy, Aida D.; Subject: Insecticides -- Philippines; Helicoverpa armigera -- Control; Aphididae -- Control.          Add to Book Cart Relevance: 25.51%