. Beneficial insects and mites. Mites; Pests; Insects. 10 adults emerge. Lacewings are night fliers and may travel many miles before mating and starting to produce eggs. Females are mobile throughout their egg-laying period, although they concentrate where nectar and honeydew are abundant. They tend to lay eggs wherever they land to feed or rest. Artificial foods, such as Bug Chow®, BugPro®, or Wheast®, can be used in place of natural foods (nectar and honeydew) to attract and concentrate adult lacewings. The presence of artificial foods does not keep newly emerged adults from dispers- ing, bu
. Beneficial insects and mites. Mites; Pests; Insects. 10 adults emerge. Lacewings are night fliers and may travel many miles before mating and starting to produce eggs. Females are mobile throughout their egg-laying period, although they concentrate where nectar and honeydew are abundant. They tend to lay eggs wherever they land to feed or rest. Artificial foods, such as Bug Chow®, BugPro®, or Wheast®, can be used in place of natural foods (nectar and honeydew) to attract and concentrate adult lacewings. The presence of artificial foods does not keep newly emerged adults from dispers- ing, but such foods may attract older adults that are in the area. Food sprays are useful only when a substantial population of lacewings is present in the area. Lacewings are usually purchased as eggs. They are shipped in a mixture of rice hulls and frozen (killed) caterpillar eggs. The caterpillar eggs provide food for the larvae that hatch during shipment, and the rice hulls keep the larvae separated to minimize cannibalism. Lacewings shipped in this manner are meant to be released as soon as hatching begins. Some insectaries offer lacewing eggs in sufficient quantities for aerial application to fields or orchards. For small-scale gardens, suppliers recommend release rates of 1 to 5 lacewing eggs per square foot of garden space. For field crop or orchard releases, recommendations range from 50,000 to 200,000 lace- wing eggs per acre. Releases are made singly or sequentially at 2-week intervals, depending on the pest to be controlled. In field trials for control of various caterpillar and aphid pests in cotton, corn, and apples, lacewing releases at these rates have provided high levels of control and significant increases in yields in some cases. However, the costs of purchasing and releasing such high numbers of lacewing eggs may be prohibitive for commercial use. Lacewing larvae are naturally tolerant of low rates of several insecticides, including azinphos- methyl (Guthion),
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Keywords: ., bookauthorillinoisnaturalhi, bookcentury1900, booksubjectinsects
