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University of Kentucky materials are on ExploreUK. This item: Image 10 of Circular (Kentucky Agricultural Experiment Station) n. 262.

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Image 10 of Circular (Kentucky Agricultural Experiment Station) n. 262

Part of Kentucky Agricultural Experiment Station

l t < The winter is passed in the adult stage and the beetles are O among the first insects in spring to start feeding on green plants f I in the field. As soon as their favorite food plants, such as T squash, beans, melons and cucumbers appear above grounll, l they transfer their attacks to them. So eager a1c they to feel 5 on these plants that they often burrow into the ground to meet the young plant coming thru the soil. The injury to the seedling and leaves is shown in the accom- panying illustration. Entire stands ofthese crops sometiines are destroyed in a few days by the beetles. In addition to the damage to the plants by feeding, the insects spread a disease among the plants, known as mosaic or wilt, that is as destructive 1 as the feeding habits of the beetle. l The insects breed in the ground, selecting, where possible. rich, damp soil. The immature form, or larva, feeds on the underground portion of the plant, becoming full grown in tive or six weeks. There are two or more generations per year anl the beetles of the last generation feed on the flowers and fruits of the crops mentioned above. To control the pest, use a well-mixed dust made of one part of calcium arsenate and 15 parts of gypsum 01`l2lll(l])ltlSl

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