Cabbage Looper and Fall Armyworm Control on Head Lettuce, 1978 | Zendy

Richard W. Straub | Zendy

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Cabbage Looper and Fall Armyworm Control on Head Lettuce, 1978

Author(s) -

Richard W. Straub

Publication year - 1979

Publication title -

insecticide and acaricide tests

Language(s) - English

Resource type - Journals

ISSN - 0276-3656

DOI - 10.1093/iat/4.1.82a

Subject(s) - sprayer , cabbage looper , seeder , tops , horticulture , muck , agronomy , biology , replicate , mathematics , sowing , pest analysis , ecology , statistics , geometry , trichoplusia , noctuidae , azimuth

The test was conducted on ‘iceburg’ lettuce planted Jul 20 in organic muck. Plots were single 40 ft rows with 4 replications in randomized complete blocks. Foliar treatments were applied through a CO2 pressurized knapsack sprayer operated at 37 psi delivering 85 gallons/A through 1 overhead nozzle/row. Granules and bait were applied through a cone seeder attachment on a planet-Jr., with an 8 in. band of material being dropped over the tops of plants. Foliar applications were on Sep 4, 12 and 19, granular and bait applications were on Sep 4. Evaluation was at harvest maturity on Sep 25. Samples consisted of 25 randomly selected heads/treatment replicate and heads were considered infested if larvae or fresh larval feeding was observed.

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