to download pdf - Purdue Extension Entomology - Purdue University
to download pdf - Purdue Extension Entomology - Purdue University
to download pdf - Purdue Extension Entomology - Purdue University
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Common Name: Sod webworm<br />
Order: Lepidoptera<br />
Family: Crambidae<br />
Pho<strong>to</strong> Credit: John Obermeyer, <strong>Purdue</strong> <strong>University</strong><br />
Pest Status: Sod webworms can become serious pests of turfgrass<br />
and other plants.<br />
Appearance: Adults are buff-colored, about ½-inch long with<br />
snout-like projections extending forward from the head. At rest,<br />
a webworm folds its wings around the body, giving it a cigarshaped<br />
appearance. A larva is gray <strong>to</strong> tan with small, dark spots on<br />
the body.<br />
Life Cycle: Sod webworm larvae overwinter several inches deep<br />
in the soil. In the spring, the larvae move upward and feed on new<br />
grass growth. In the summer, the larvae bury deeper in<strong>to</strong> the soil <strong>to</strong><br />
pupate. After two weeks, the new adult moths emerge at night <strong>to</strong><br />
mate and lay eggs.<br />
Where <strong>to</strong> Collect: Sod webworms are commonly found in wellmaintained<br />
turfgrass, often in residential lawns.<br />
Common Name: Soldier beetle<br />
Order: Coleoptera<br />
Family: Cantharidae<br />
Pest Status: Soldier beetles are not considered pests.<br />
Appearance: Soldier beetles are elongated, soft-bodied, and<br />
about ½-inch long. Colors vary from yellow <strong>to</strong> red with brown or<br />
black wing trims. They somewhat resemble lighting bugs, but their<br />
heads are visible from above and they do not have lightproducing<br />
organs.<br />
Life Cycle: Adult females lay their eggs in clusters in the soil.<br />
The larvae overwinter in plant debris or in buildings, feeding on<br />
caterpillars and eggs. They pupate in the spring and a few weeks<br />
later, the adults emerge.<br />
Where <strong>to</strong> Collect: Soldier beetles can be found in damp soil and<br />
debris or under loose bark, but are easiest <strong>to</strong> collect from<br />
flowers.<br />
Pho<strong>to</strong> Credit: John Obermeyer, <strong>Purdue</strong> <strong>University</strong><br />
Common Name: Spittlebug<br />
Order: Homoptera<br />
Family: Cercopidae<br />
Pest Status: Spittlebugs occasionally damage agronomic crops<br />
such as alfalfa, but generally are considered minor pests.<br />
Appearance: Spittlebugs derive their name from the white, frothy<br />
spittle the nymphs produce. Adults resemble leafhoppers, but are<br />
quite large, about 1 ⁄3-inch long. The eyes are bright red and the<br />
body color varies from brown <strong>to</strong> orange. They have dark wings<br />
with two red stripes that cross the back.<br />
Life Cycle: Adults lay their eggs in late summer. Eggs overwinter.<br />
The eggs hatch in early spring, and the nymphs go through five<br />
instars before emerging as adults. It takes approximately 40 <strong>to</strong> 52<br />
days <strong>to</strong> complete the life cycle.<br />
Where <strong>to</strong> Collect: Spittlebugs are found in or near masses of froth<br />
at leaf nodes on various plants. Sweep nets often are the best<br />
collecting <strong>to</strong>ols.<br />
Pho<strong>to</strong> Credit: John Obermeyer, <strong>Purdue</strong> <strong>University</strong>