RELATIONSHIP BETWEEIN INFESTATION WITH DIFFERENT STAGES OF THE SPIDER MITE, Tetranychus urlicae KOCH ON FIFTEEN TOMATO VARIETIES AND PLANT AGE WITH SPECIAL REFERENCE TO VEGETATIVE AND YIELD PHYSICAL CHARACTERS | ||
| Journal of Plant Protection and Pathology | ||
| Article 3, Volume 29, Issue 6, June 2004, Pages 3567-3579 PDF (1.66 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jppp.2004.239728 | ||
| Authors | ||
| F. S. Faris,1; Nadia H. Habashy2; Aida K. F. Iskandar2 | ||
| 1Horticultural Res. lnst., Agric. Res. Center, Dokki-Giza, Egypt. | ||
| 2Plant Protection Res. Inst., Agric. Res. Center, Dokk-Giza, Egypt. | ||
| Abstract | ||
| To study the effect of tomato varieties and age of plants on the infestation with eggs. immature stages and adult stage of Ihe two-spotted spider mite, Telranychus utticee Koch. Two experiments were carried out during summer seasons of 2002 and 2003 at South of Tahreer Province, Seheira Governorate including fifteen tomato varieties. The results revealed that Wadistar, Ginan, MHX-396 and 'Kamak tomato varieties were the most resistant varieties during the two seasons where plants attacked with few number of eggs, immature and adult stages of the two spotted spider mite, T. urticae; while Saria, King, Master-97 and Mina-97 were the highest infestation varieties with spider mites. Regarding the relation between the plant ages and infestation with the three stages. the plant age after transplanting could be divided into three periods; the first from transplanting till one month later which usually harboured little number of mites, the second from 3D 10 50 days from transplanting with the highest number of different stages, and the third period from 50 days after transplanting till the end of growing season in which mite stages decreased steadily. Also some vegetalive and yield characters was measured for the tested varieties, and usually, there was no significant differences for the most tested characters of the fifteen tomato varieties. | ||
| Keywords | ||
| Tomato; Varieties; Mites; Tetranychus urticae; Vegetative; Yield; Physical characters; Plant age | ||
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