Investigation on resistance of different peach cultivars to two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) in laboratory conditions

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Riahi Elham; NEMATI ALIREZA; SHISHEHBOR PARVIZ; SAEIDI ZARIR

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Journal: Journal of Entomological Society of Iran Year:2019 | Volume:39 | Issue:2 Page(s): 213-226

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Title

Investigation on resistance of different peach cultivars to two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) in laboratory conditions

Author(s)

Riahi Elham | NEMATI ALIREZA | SHISHEHBOR PARVIZ | SAEIDI ZARIR | Issue Writer Certificate

Keywords

nutrient elementsQ2

phenolic compoundsQ2

trichomeQ1

leaf diskQ1

Abstract

Two-spotted spider mite (TSSM), Tetranychus urticae Koch is an important pest of peach in Iran. This study was conducted to estimate the resistance of five peach cultivars (Redtap, G. H. Hale, Kardi, Elberta and Springtimes). Resistance of different cultivars to this pest was evaluated at 27 ± 1 ° C, 50 ± 10 %RH and 12 L: 12 D h., using leaf disk bioassay with introducing five adult female mites on leaf disk and counting number of eggs, mite mortality and host damage. Moreover, trichomes density on upper and underside of the leaves, concentration of phenolic compounds and percentage of leaf nutrients were measured. The results showed that the highest plant damage was on G. H. Hale and Kardi cultivars, and the lowest on Elberta, Redtap and Springtimes. The findings also indicated that the density of trichomes on upper and underside of the leaves was not significantly different among cultivars. Therefore, this parameter has no role in resistance to TSSM. Furthermore, there was no relationship between concentration of phenolic compounds and resistance to TSSM. Altogether results revealed that Redtap, Elberta and Springtimes were the most tolerant, whereas G. H. Hale and Kardi were the most susceptible cultivars and nutrient imbalance especially potassium is probably main factor of the resistance against TSSM.

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APA: Copy

Riahi, Elham, NEMATI, ALIREZA, SHISHEHBOR, PARVIZ, & SAEIDI, ZARIR. (2019). Investigation on resistance of different peach cultivars to two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) in laboratory conditions. JOURNAL OF ENTOMOLOGICAL SOCIETY OF IRAN (JESI), 39(2 ), 213-226. SID. https://sid.ir/paper/406693/en

Vancouver: Copy

Riahi Elham, NEMATI ALIREZA, SHISHEHBOR PARVIZ, SAEIDI ZARIR. Investigation on resistance of different peach cultivars to two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) in laboratory conditions. JOURNAL OF ENTOMOLOGICAL SOCIETY OF IRAN (JESI)[Internet]. 2019;39(2 ):213-226. Available from: https://sid.ir/paper/406693/en

IEEE: Copy

Elham Riahi, ALIREZA NEMATI, PARVIZ SHISHEHBOR, and ZARIR SAEIDI, “Investigation on resistance of different peach cultivars to two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) in laboratory conditions,” JOURNAL OF ENTOMOLOGICAL SOCIETY OF IRAN (JESI), vol. 39, no. 2 , pp. 213–226, 2019, [Online]. Available: https://sid.ir/paper/406693/en

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