Control of Insects Affecting Birdsfoot Trefoil Seed Production in Vermont1

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Abstract:

The results of the two years' studies on the control of insects affecting birds foot trefoil (Lotus corniculatus (L.)) seed production show that early season applications of insecticides with good residual properties result in significant increases in seed yields. The data indicate that control of the meadow spittle bug (Philaenus leucophthalmus (L.)) and several species of Miridae is necessary during the critical period of bud development and flowering. The flowering of treated plots was visibly more dense, uniform, and of shorter duration than on the check plots. This observation was confirmed by counts of umbels per stem and pods per umbel, and was considered a good criterion for measuring plant protection offered by the insecticides. The honeybee population on the test plots was considered adequate for pollination.

Document Type: Research Article

Publication date: August 1, 1958

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