Cucurbit Family Plant Problems - Squash Bug
Squash and pumpkin leaves wilt and may
become black and crisp. Bright green to dark gray or brown flat-backed bugs,
about 1/2 inch long, cluster on the plants.
ANALYSIS: Squash bugs (Anasa tristis)
Both the young (nymphs) and the adult squash bugs attack cucurbits, but
infestations are most serious on squash and pumpkins. Squash bugs injure and
kill the plants by sucking the sap from the leaves and stems. The dark brown
adults, which are sometimes incorrectly called stink bugs, emit a disagreeable
odor when crushed. The females lay brick-red egg clusters on the leaves in the
spring. Although there is only one generation each year, all stages are found
throughout the summer.
Squash bugs are elusive and difficult to control. When the bugs first
appear, treat the plants and the soil around them with an insecticide
containing carbaryl (SEVIN), insecticidal soap, or pyrethrins. Repeat the
treatment every 7 days until the bugs are controlled. Plant varieties that are
resistant to attack by squash bugs.
Squash varieties resistant to squash bugs: Butternut, Royal Acorn,
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Text and images adopted from theOrtho
Last Updated: Fri Sep 06 10:30:00PM CST 1996
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