Morphological and anatomical factors responsible for varied susceptibility of some species of spruce to infestation by spruce spider mie (Oligonychus ununguis Jacobi) |
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| Authors: | Ewa Puchalska Teresa Tykarska Barbara Czajkowska |
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| Affiliation: | (1) Department of Applied Entomology, Warsaw Agricultural University, 159 Nowoursynowska Str., 02-776 Warsaw, Poland;(2) Department of Plant Morphogenesis, Institute of Plant Experimental Biology, Warsaw University, 1 Miecznikowa Str., 02-096 Warsaw, Poland |
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| Abstract: | Differences in susceptibility to infestation by spruce spider mite of 3 investigated spruce species (Picea glauca ‘Conica’, P. pungens and P. omorika) may be due to features of anatomical and morphological structure of needles. In P. omorika, showing some resistance to the spruce spider mite, we noted lamellar structure of epidermal cell walls and extensive supporting tissues (hypodermis and sclerenchyma fibres) at the whole circumference of the needle. |
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| Keywords: | morphological and anatomical structure needles spruce susceptibility spruce spider mite Oligonychus ununguis |
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