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Titolo:
Effect of imidacloprid on incidence of Tomato yellow leaf curl virus
Autore:
Ahmed, NE; Kanan, HO; Sugimoto, Y; Ma, YQ; Inanaga, S;
Indirizzi:
Tottori Univ, Arid Land Res Ctr, Tottori 6800001, Japan Tottori Univ Tottori Japan 6800001 Land Res Ctr, Tottori 6800001, Japan Agr Res Corp, Crop Protect Ctr, Wad Medani, Sudan Agr Res Corp Wad Medani Sudan Corp, Crop Protect Ctr, Wad Medani, Sudan
Titolo Testata:
PLANT DISEASE
fascicolo: 1, volume: 85, anno: 2001,
pagine: 84 - 87
SICI:
0191-2917(200101)85:1<84:EOIOIO>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
BEMISIA-TABACI HOMOPTERA; DWARF VIRUS; ALEYRODIDAE; RESISTANCE;
Keywords:
Bemisia tabaci;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Sugimoto, Y Tottori Univ, Arid Land Res Ctr, Hamasaka 1390, Tottori 6800001, Japan Tottori Univ Hamasaka 1390 Tottori Japan 6800001 00001, Japan
Citazione:
N.E. Ahmed et al., "Effect of imidacloprid on incidence of Tomato yellow leaf curl virus", PLANT DIS, 85(1), 2001, pp. 84-87

Abstract

Confidor, an imidacloprid insecticide, was used in two applications at four rates (47.6, 71.4, 95.2, and 119 g a.i./ha) for indirectly controlling Tomato yellow leaf curl virus (TYLCV) in field plantings of tomato. This spray regimen was compared with standard applications of cypermethrins at 10- to 15-day intervals throughout the growing season. In three field trials, a combination of integrated pest management (IPM) practices and two applications of Confider at the two highest rates immediately after planting and 6 weeks later, protected tomato plants against the disease until 12 weeks after sowing. All rates of Confider reduced disease incidence compared with standard chemical control applied in an integrated strategy, and quantitative efficacy increased with increase of insecticide rate. In the three seasons,the mean incidence of TYLCV 12 weeks after sowing was 42.7% in plots not adopting IPM compared with 15.7% in those that did. Disease incidence was reduced by Confider treatments to 2.2 to 17%. Confider-treated plots consistently had higher yields than control plots. and the yields decreased with the decrease in the rate of Confider application. Confider offers several advantages over standard applications of cypermethrins to control TYLCV. When applied immediately after planting, its long-lasting systemic activity protected the crop against the disease during early stages of growth. In addition, it reduced the number of sprays and increased tomato yield.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 09:22:51