Recognizing the Good Bugs in Cotton - Texas Is Cotton Country ...
Recognizing the Good Bugs in Cotton - Texas Is Cotton Country ...
Recognizing the Good Bugs in Cotton - Texas Is Cotton Country ...
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Mymarid<br />
Wasps<br />
Family: Mymaridae: Anaphes iole<br />
Characteristics: These very t<strong>in</strong>y wasps, less<br />
than 0.04 <strong>in</strong>ch (0.6mm), have very slender<br />
h<strong>in</strong>d w<strong>in</strong>gs. They may be captured <strong>in</strong> yellow<br />
pan traps or with sweep nets made of canvas<br />
or reared from lygus bug eggs collected from<br />
cotton and alfalfa. Parasitized lygus eggs are<br />
black. Anaphes iole is known to occur <strong>in</strong><br />
Louisiana, California and Arizona and is<br />
probably present throughout most of <strong>Cotton</strong><br />
Belt.<br />
Hosts: Anaphes iole is an important parasite<br />
of eggs of <strong>the</strong> lygus bug, Lygus hesperus and<br />
<strong>the</strong> tarnished plant bug, L. l<strong>in</strong>eolaris. A. iole<br />
also parasitizes eggs of some species of<br />
damsel bugs (p.56) <strong>in</strong> beans. However, studies<br />
<strong>in</strong> <strong>the</strong> Southwest showed A. iole did not<br />
attack damsel bug eggs <strong>in</strong> cotton.<br />
General Biology: The adult parasite deposits<br />
her egg <strong>in</strong>to <strong>the</strong> lygus eggs which are <strong>in</strong>serted<br />
<strong>in</strong>to plant tissue. The wasp egg hatches <strong>in</strong>to a<br />
grub which consumes <strong>the</strong> contents of <strong>the</strong><br />
lygus egg and pupates. A s<strong>in</strong>gle adult wasp<br />
later emerges from <strong>the</strong> lygus egg.<br />
Development from egg to adult requires about<br />
15 days.<br />
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