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Filtering by: Subject Almond -- Diseases and pests Academic Affiliation Entomology Creator Booth, Steven R.

The potential of endemic natural enemies to suppress pear psylla, Cacopsylla pyricola Förster, in the Hood River Valley, Oregon

Creator:

Booth, Steven R.

Abstract:

This thesis addressed the potential of endemic predaceous and parasitic arthropods of the Hood River Valley, Oregon to suppress the pear psylla, Cacopsylla pyricola F8rster. Natural enemies adequately suppressed psylla in three of seven unsprayed orchards of differing vegetational settings, orchard age, and size. Relatively few psylla natural enemies dispersed...

Resource Type:

Dissertation

Full Text:

russetted pears under standard and selective pest control programs during harvest at Quince, 1987-89. Total
A two-year comparison of natural enemy/pear psylla dynamics in an unsprayed pear block

Creator:

Booth, Steven R.

Resource Type:

Conference Proceeding

Full Text:

predator immigration and colonization of pear, a block of mature D'Anjou pears at MCAREC was left unsprayed