Apple, Effectiveness of Methomyl (Lannate 1.8 L) at 6X Concentration, Used as an Ovicide, in Controlling Aphids, 1981 | Zendy

P. J. David | Zendy; R. L. Horsburgh | Zendy; L. F. Ponton | Zendy

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Apple, Effectiveness of Methomyl (Lannate 1.8 L) at 6X Concentration, Used as an Ovicide, in Controlling Aphids, 1981

Author(s) -

P. J. David,

R. L. Horsburgh,

L. F. Ponton

Publication year - 1982

Publication title -

insecticide and acaricide tests

Language(s) - English

Resource type - Journals

ISSN - 0276-3656

DOI - 10.1093/iat/7.1.8a

Subject(s) - sprayer , aphid , methomyl , horticulture , biology , agronomy , toxicology , pesticide

On Apr 24, four rates of methornyl plus a water control were applied to seven year old apple trees bearing eggs of A. pomi and D. plantaginea. Application was with_a Swanson airblast sprayer calibrated to deliver 233.55 litres/ha (25 pga) from each side, at 3.22 Km/hr (2 mph) and 7.02 Kg/cm2 (100 psi) pump pressure. Both sides of the trees were sprayed. Single tree treatments were used and replicated four times. Data were recorded on May 4 as the number of aphid infested terminals observed in two minutes per tree. A terminal was considered infested if it contained one or more apterous aphids.

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