<div class="description">
Subjects: life cycle (organisms); Heliothis zea Control; Vetch Diseases and pests; Helicoverpa zea; Vicia; natural enemies; Winthemia; parasitoids; biological control agents; control methods; biological control</div>
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<dl><dd>Luginbill, Philip,</dd>
<dd>Beyer, A. H.</dd></dl></div>
Internet Archive identifier