&lt;b&gt;Biological parameters of three &lt;i&gt;Trichogramma pretiosum&lt;/i&gt; strains (Riley, 1879) (Hymenoptera: Trichogrammatidae) on eggs &lt;i&gt;Helicoverpa armigera&lt;/i&gt; (Hübner, 1805) (Lepidoptera: Noctuidae)
Acta Scientiarum. Biological Sciences