Fall Armyworm Control on Bermuda Grass, 1976
Author(s) -
Miles Karne,
Ken Pinkston,
Richard Price
Publication year - 1977
Publication title -
insecticide and acaricide tests
Language(s) - English
Resource type - Journals
ISSN - 0276-3656
DOI - 10.1093/iat/2.1.129a
Subject(s) - sprayer , randomized block design , instar , horticulture , fall armyworm , zoology , larva , biology , mathematics , toxicology , botany , agronomy , spodoptera , biochemistry , gene , recombinant dna
Two tests were conducted evaluating seven chemicals and one microbial agent. Each treatment consisted of 25' × 25' area replicated three times using a complete randomized block design. Each 25' × 25' treatment was separated by a 10' buffer zone. Treatments were applied using a John Bean sprayer 55, series L-1565-2 and a 785 John Bean SpraymasterR deluxe gun which delivered 16 gal/plot at 100 psi. Test 1 was treated on Aug 16 and test 2 on Aug 19. S. frugiperda control was determined by randomly examining 1 sq. ft . from four locations in each treatment. S. frugiperda larvae ranged from 3rd to 5th instar. A pretreatment count consisted of 15 samples of 1 sq ft each from the test area.
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