期刊
ARTHROPOD-PLANT INTERACTIONS
卷 10, 期 4, 页码 293-301出版社
SPRINGER
DOI: 10.1007/s11829-016-9434-z
关键词
Development time; Fecundity; Longevity; Population parameters; Solanum lycopersicum; Capsicum annuum
资金
- National Institute of Agricultural Research Salto Grande (Instituto Nacional de Investigacion Agropecuaria Salto Grande)
- San Antonio Experimental Station of the Agricultural College (Estacion Experimental San Antonio, Facultad de Agronomia, Universidad de la Republica)
Whiteflies Bemisia tabaci (Gennadius) and Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae) are important pests in pepper (Capsicum annuum L.) and tomato (Solanum lycopersicum L.) crops in many countries. Contrary to what is observed for all other countries, in Uruguay, B. tabaci is mainly found on pepper and rarely on tomato, while T. vaporariorum is exclusively found on tomato. This study tested the oviposition preferences and biotic potential of these two whiteflies reared on both host plants. The developmental time, survival rates, longevity, fecundity and main population parameters were characterized. Both whitefly species showed different preference patterns regarding their host plants. T. vaporariorum preferred tomato instead of pepper to oviposit. Their developmental time is longer on pepper. B. tabaci preferred pepper, but the difference from tomato was not very strong. Pepper affects the biotic expression of T. vaporariorum negatively, while B. tabaci is able to develop equally on both host plants. These results show that the distribution differences of both whiteflies observed on both host plants could have a biological basis.
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