Pear, Pear Psylla Control with a Juvenile Hormone Mimic, Pyriproxyfen, 1990 | Zendy

Haruyasu Yamamoto | Zendy; Pere Manzanares | Zendy

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Pear, Pear Psylla Control with a Juvenile Hormone Mimic, Pyriproxyfen, 1990

Author(s) -

Haruyasu Yamamoto,

Pere Manzanares

Publication year - 1991

Publication title -

insecticide and acaricide tests

Language(s) - English

Resource type - Journals

ISSN - 0276-3656

DOI - 10.1093/iat/16.1.32

Subject(s) - sprayer , pear , pyriproxyfen , horticulture , randomized block design , biology , nymph , botany , agronomy , larva

Experimental sprays were applied to 7- yr-old trees with a hand-operated backpack sprayer in an experimental farm in Lerida, Spain. Plots consisted of three 4-tree replicates in a randomized block design. Dates of application were 26 Apr and 7 May. Approximately 0.40 gal/plot of spray was applied. Treatments were evaluated for pear psylla control by counts of eggs and nymphs under a stereo microscope at 10-day intervals. Counts were made by sampling 20 leaves from 20 terminals/plot.

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