What question did this study set out to answer?

To assess how different weedy and weed-free soybean habitats affect the diversity and abundance of herbivorous and predatory insects.

April 1, 1983Environmental Entomology

Effects of Weeds on the Diversity and Abundance of Insects in Soybeans1

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Authors

MSM. D. Shelton CEC. R. EdwardsUniversity of Lancashire

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Implication

Comparative field survey shows higher insect diversity and predator abundance in weedy soybean habitats, indicating that weed management influences natural pest suppression.

Key Points

To assess how different weedy and weed-free soybean habitats affect the diversity and abundance of herbivorous and predatory insects.
Sampled insect populations using sweep-net sampling and pitfall trapping in Indiana soybean fields.
Evaluated four habitat treatments: weed-free soybeans, grassy soybeans, soybeans with broadleaf weeds, and soybeans with mixed broadleaf weeds and grasses.
Insect species diversity was greater in all weedy soybean habitats than in weed-free soybeans, reaching peak diversity in mixed-weed habitats.
The primary soybean pest, the Mexican bean beetle (Epilachna varivestis), was most abundant in weed-free soybeans, whereas predatory species (Coleomegilla maculata, Orius insidiosus, Nabis spp., and Harpalus spp.) were most abundant in habitats containing grasses and mixed weeds.

Cite This Study

Shelton et al. (1983) studied this question.

synapsesocial.com/papers/6aa9322d1ed6af7fb80e07c8 https://doi.org/10.1093/ee/12.2.296

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Implication

Comparative field survey shows higher insect diversity and predator abundance in weedy soybean habitats, indicating that weed management influences natural pest suppression.

Effects of Weeds on the Diversity and Abundance of Insects in Soybeans1

Discussion

Member takes

Implication

Key Points

Cite This Study

Effects of Weeds on the Diversity and Abundance of Insects in Soybeans1

Discussion

Member takes

Implication

Key Points

Cite This Study

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