Insect and Weed Interactions on Bell Peppers (Capsicum annuum)
- 1 October 1988
- journal article
- research article
- Published by Cambridge University Press (CUP) in Weed Technology
- Vol. 2 (4), 423-428
- https://doi.org/10.1017/s0890037x00032206
Abstract
Two years of field research were conducted to determine the additive effects of weed cover and insects on pepper production. When weeds covered less than 10% of test plots, the natural insect populations reduced the marketable fruit yield of bell peppers 32% in 1983 and 22% in 1984. When weeds covered 72 or 94% of the test plots, foliage damage due to insects was from 5.8 to 12.1%, respectively. The high percent weed cover and insects reduced yield 99%. The average fresh weight of pepper foliage approached zero as weed cover approached maximum. Foliar levels of iron and aluminum were reduced greatly in peppers grown in competition with a 100% weed cover. The level of boron, copper, phosphorus, and potassium in pepper foliage increased as percent weed cover increased.Keywords
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