Resistance and Suscebtility of Cucumber Cultivars to Liriomyza Sativae Blanchard (Diptera: Agromyzidae) in the Greenhouse Conditions

Mirzaei, Narges and Razmjou, Jabraeil and Golizadeh, Ali and Naseri, Bahram and Mottaghinia, Leila (2018) Resistance and Suscebtility of Cucumber Cultivars to Liriomyza Sativae Blanchard (Diptera: Agromyzidae) in the Greenhouse Conditions. Masters thesis, University of Mohaghegh Ardabili.

Text (مقاومت و حساسیت ارقام مختلف خیار گلخانه‌ای بهLiriomyza sativae Blanchard (Diptera: Agromyzidae) در شرایط گلخانه¬ای) Narges Mirzaei.pdf Download (1MB)

Abstract

The vegetable leafminer, Liriomyza sativae Blanchard is one of the important pests which cause damage on cucumber. Using resistant cultivars is an effective method in integrated management of this pest. In this research, resistance or susceptibility of eight different cultivars of cucumber including Suprina, Beit Alpha, Isfahan, Yalda, Sakata, Davos, Bonanza and Thalsia to vegetables leafminer were evaluated. The experiments were carried out at 25 ± 2 ° C, 65 ± 5% RH, and a photoperiod of 16 L: 8 D in a growth chamber. In the antibiosis experiment, the biological parameters of the leafminer were evaluated on different cucumber cultivars. The obtained results showed that the developmental period of the pest was affected by different cucumber cultivars. The longest larval period was on Yalda cultivar and its shortest period was on Isfahan cultivar. The longevity of males was shortest on Yalda cultivar. The longest and shortest oviposition period of this insect was obtained on Isfahan and Yalda cultivars, respectively. Also, the tested cucumber cultivars significantly affected the population growth parameters of the vegetable leafminer. The net reproductive rate (R0), the intrinsic rate of natural increase (rm) and the finite rate of increase were lowest on Yalda cultivar and highest on Isfahan cultivar. The lowest value of doubling time (DT) was also obtained on Yalda cultivar. Evaluating the damage of vegetable leafminer on different cultivars showed that the damage of the pest was least on Yalda cultivar. Based on the results of the present study, Yalda cultivar was relatively resistant to L. sativae and can be used in integrated pest management programs of this pest, especially in greenhouses. Keywords: Antibiosis, cucumber cultivars, biological parameters, damage, vegetable leafminer, resistance

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