TY - JOUR
T1 - Effect of nitrogen levels of two cherry tomato cultivars on development, preference and honeydew production of Trialeurodes vaporariorum (Hemiptera
T2 - Aleyrodidae)
AU - Park, Mi Kyung
AU - Kim, Jeong Gyu
AU - Song, Yoo Han
AU - Lee, Joon Ho
AU - Shin, Key il
AU - Cho, Kijong
N1 - Funding Information:
This research was funded by a grant from the Agricultural R&D Promotion Center (grant no. 301008032HD110). We thank Dr. Kwon Woo Park, Korea University, Division of Life Science and Biotechnology, for providing the cherry tomato cultivars and greenhouse space used for the experiments. Special thanks to Mr. Sang Don Lee for supplying the Rockwool materials and to Miss Mi Re Kim for her help in preparing the manuscript.
PY - 2009/12
Y1 - 2009/12
N2 - Two cherry tomato plant cultivars (Lycopersicon esculentum Miller, cultivars 'Koko' and 'Pepe') were supplied with high (395 ppm), medium (266 ppm) and low (199 ppm) concentrations of nitrogen to determine the influence of nitrogen fertilization on development, cultivar preference and honeydew production by greenhouse whiteflies, Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae). The nitrogen, protein, and chlorophyll contents of tomato leaves were higher in the high nitrogen supplied plants than in the medium or low nitrogen supplied plants, but the sugar content showed an inverse relationship. The developmental times of eggs and nymphs decreased as the nitrogen concentrations increased in both cultivars. The preference of T. vaporariorum was compared by counting the number of eggs deposited on leaves in choice and non-choice tests. In the non-choice test, no significant nitrogen treatment effects were observed but the upper plant stratum was preferred for egg laying. In the choice test, there were significant main effects of cultivar and nitrogen concentration. T. vaporariorum laid eggs more on leaves of plants with higher nitrogen at the upper stratum. In both experiments, T. vaporariorum preferred the 'Koko' cultivar to the 'Pepe' cultivar. The honeydew production of T. vaporariorum nymphs increased with decreasing nitrogen treatment concentrations. The largest honeydew production was detected in the 'Pepe' cultivar grown at low nitrogen concentration. It is concluded that cultivar 'Pepe' had an advantage over 'Koko' in term of T. vaporariorum management program in tomato greenhouses.
AB - Two cherry tomato plant cultivars (Lycopersicon esculentum Miller, cultivars 'Koko' and 'Pepe') were supplied with high (395 ppm), medium (266 ppm) and low (199 ppm) concentrations of nitrogen to determine the influence of nitrogen fertilization on development, cultivar preference and honeydew production by greenhouse whiteflies, Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae). The nitrogen, protein, and chlorophyll contents of tomato leaves were higher in the high nitrogen supplied plants than in the medium or low nitrogen supplied plants, but the sugar content showed an inverse relationship. The developmental times of eggs and nymphs decreased as the nitrogen concentrations increased in both cultivars. The preference of T. vaporariorum was compared by counting the number of eggs deposited on leaves in choice and non-choice tests. In the non-choice test, no significant nitrogen treatment effects were observed but the upper plant stratum was preferred for egg laying. In the choice test, there were significant main effects of cultivar and nitrogen concentration. T. vaporariorum laid eggs more on leaves of plants with higher nitrogen at the upper stratum. In both experiments, T. vaporariorum preferred the 'Koko' cultivar to the 'Pepe' cultivar. The honeydew production of T. vaporariorum nymphs increased with decreasing nitrogen treatment concentrations. The largest honeydew production was detected in the 'Pepe' cultivar grown at low nitrogen concentration. It is concluded that cultivar 'Pepe' had an advantage over 'Koko' in term of T. vaporariorum management program in tomato greenhouses.
KW - Chemical contents
KW - Choice and non-choice tests
KW - Development
KW - Honeydew
KW - Koko
KW - Pepe
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U2 - 10.1016/j.aspen.2009.04.004
DO - 10.1016/j.aspen.2009.04.004
M3 - Article
AN - SCOPUS:70349947229
VL - 12
SP - 227
EP - 232
JO - Journal of Asia-Pacific Entomology
JF - Journal of Asia-Pacific Entomology
SN - 1226-8615
IS - 4
ER -