Assessment of legume and nonlegume ground covers on Coleoptera: Coccinellidae density for low-input pecan management

Article Abstract:

A study was conducted on the legume cover crop treatment used in three pecan orchards to determine its effectiveness in reducing pecan aphids. Results show that legume cover crop treatment increase the number of coccinellids that led to the decline in pecan aphids. Coccinellid density was greater in legume ground covers than in the tree canopy, suggesting that many coccinellid species on the legumes are reluctant to migrate to the trees when there are few or no legume aphids.

Usage, Pests, Biological control, Control, Pecan, Pecans, Diseases and pests, Ladybirds, Ladybugs, Aphididae, Aphids, Ground cover plants

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IWP...AISP Old and New In San Francisco

Article Abstract:

Syntopican XI held on June 13-16, 1983, had for its theme 'Integrated Systems: The Technologies and Their Use.' The show is sponsored by the Association of Information Systems Professionals (AISP). A highlight of the show will be the opportunity to view a local area network in action. A schedule of sessions is presented as well as pictures of new products.

Office automation, Local area networks, LAN, Word processing, Conferences, AISPNET 1 (local area network)

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State agencies cite roadblocks to using flyash in construction

Article Abstract:

The Electric Power Research Institute wants to expand the use of fly ash in industry because of its abundance, and because of the cost of disposal. The material is used mostly as a stabilizing agent, but more data on effects and clearer regulations are needed.

Environmental aspects, Surveys, Fly ash, Electric Power Research Institute

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