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Potato Research
Marco, S., Institute of Plant Protection, Volcani Centre, Agricultural Research Organisation, Bet Dagan, Israel
Surrounding half of the perimeter of potato plots with sticky yellow polyethylene sheets (HPS) stretched vertically at a height of 0.6 m above the soil, reduced the number, of winged aphids by ca. 70% and of PLRV infection by ca. 38%. A YPS mulch cuased an increase in aphid population, PLRV incidence and percentage of misshapen tubers. Covers of white coarse net (2.5×8.0 mesh per inch square ≈ 1×3.1 per mesh per cm square) reduced landing aphids to ca. 2% of those trapped in unprotected plots but increased by factors of ca. 5 to 6000 the number of apterae. PLRV incidence was greatly reduced in protected plots provided that no secondary infection occurred under the net. In plots planted with secondarily PLRV-infected seeds subsequent incidence under the nets was even higher than in the unprotected controls. The use of aphicides in addition to net covers completely prevented the spread of PLRV. © 1981 Kluwer Academic Publishers.
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Reducing potato leaf roll virus (PLRV) in potato by means of baiting aphids to yellow surfaces and protecting crops by coarse nets
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Marco, S., Institute of Plant Protection, Volcani Centre, Agricultural Research Organisation, Bet Dagan, Israel
Reducing potato leaf roll virus (PLRV) in potato by means of baiting aphids to yellow surfaces and protecting crops by coarse nets
Surrounding half of the perimeter of potato plots with sticky yellow polyethylene sheets (HPS) stretched vertically at a height of 0.6 m above the soil, reduced the number, of winged aphids by ca. 70% and of PLRV infection by ca. 38%. A YPS mulch cuased an increase in aphid population, PLRV incidence and percentage of misshapen tubers. Covers of white coarse net (2.5×8.0 mesh per inch square ≈ 1×3.1 per mesh per cm square) reduced landing aphids to ca. 2% of those trapped in unprotected plots but increased by factors of ca. 5 to 6000 the number of apterae. PLRV incidence was greatly reduced in protected plots provided that no secondary infection occurred under the net. In plots planted with secondarily PLRV-infected seeds subsequent incidence under the nets was even higher than in the unprotected controls. The use of aphicides in addition to net covers completely prevented the spread of PLRV. © 1981 Kluwer Academic Publishers.
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