@ARTICLE{Bichra_Paweł_Comparison_2002,
 author={Bichra, Paweł and Tomczyk, Anna},
 number={No 2},
 journal={Journal of Plant Protection Research},
 pages={131-141},
 howpublished={online},
 year={2002},
 publisher={Committee of Plant Protection PAS},
 publisher={Institute of Plant Protection – National Research Institute},
 abstract={Experiment was conducted twice: in spring of 1999 and 2000. Two greenhouse cucumber varieties (Aramis and Corona) with different susceptibility to spider mires were employed to compare the harmfulness of the two-spotted spider mite and the carmine spider mite. Effects of the rwo-spotted spider mite and the carmine spider mite feeding either on the fruit production or on the content of some organic compounds were measured. Moreover, development of spatially separated populations of the two-spotted spider mite and the carmine spider mite was analysed. Two abiotic parameters were taken into account: temperature and sunlight duration. Increment of the carmine spider mite population density was faster during the season of higher temperature and sunlight duration (spring of 2000). Differences in the development of rwo-spotted spider mite were not observed. The increase of fruit weight was closely correlated with increase of densiry of spider mires. The feeding of relatively low populations of the carmine spider mite (up to 5-7 mobile stages per leaf) stimulated the weight increase of fruits collected from Aramis and Corona varieties. The feeding of rwo-spotted spider mite and the carmine spider mire affected the distribution of organic compounds produced in plants. In quire severely infested leaves (2-3 damage level of De Ponti scale) rota! amount of sugars and phenolic compounds increased as compared ro control leaves.},
 type={Article},
 title={Comparison of harmfulness of the two-spotted spider mite Tetranychus urticae Koch and the carmine spider mite Tetranychus cinnabarinus (Boisduval) on greenhouse grown cucumber},
 URL={http://ochroma.man.poznan.pl/Content/131053/PDF-MASTER/7_PLANT_42_2_2002_Bichta_Comparison.pdf},
 keywords={Tetranychus urticae, two-spotted spider mite, cucumber, Tetranychus cinnabarinus, harmfulness, carmine spider mite, sugars, reducing sugars, phenolic compounds},
}