THE ROLE OF SOME SECONDARY COMPOUND ON THE SUSCEPTIBILITY OF SOME PEAR VARIETIES TO INFECTION BY PEAR LACE BUG Stephanitis pyri (F.) (Tingidae: Hemiptera)
The results of the recent study showed the toxic effect of some secondary chemicals compounds extracted from pear leaves varieties such as (Zafarania, Othmani, Le-conte and Calleryana) in the pear lace bug Stephanitis pyri (F.); the results showed a variation in mortality percentage according to p...
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| Format: | Article |
| Language: | Arabic |
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College of Agriculture
2009-12-01
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| Series: | Mesopotamia Journal of Agriculture |
| Online Access: | https://magrj.mosuljournals.com/article_27523_0dd89246b601c231c416f5ff6656ef14.pdf |