ESTABLISHMENT OF ECONOMIC THRESHOLDS FOR OLIVE MOTH, PRAYS OLEAE (BERN.) IN TRAS-OS-MONTES REGION
نویسندگان
چکیده
منابع مشابه
Ethylene can reduce Prays oleae attack in olive trees
An ethrel treatment of olive trees in two sites differing in altitude caused a decline in the infestation of Prays oleae, an important pest in this crop. Since the ethylene treatment did not affect natural enemies of P. oleae, we conclude that this natural compound can be used as an alternative to the use of pesticides in olive orchards. The results of this work indicate that ethrel affects P. ...
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A 28-year study (1970-1997) of olive trees grown in Granada (southern Spain) has revealed the levels of attack by the olive moth (Prays oleae Bern.), as well as the beneficial action of oophagous predators (Chrysopidae). On the basis of the results, the damage caused by the moth has been divided into three categories, and the yield and economic losses have been evaluated. When the final attack ...
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A 3-yr field study was conducted at commercial juice grape (Vitis labrusca L.) vineyards to develop an economic injury level (EIL) for grape berry moth, Paralobesia viteana (Clemens) (Lepidoptera: Tortricidae) and to determine patterns of cluster injury. Infestation of grape clusters by P. viteana was measured biweekly from bloom until harvest, and fruit was sampled immediately before harvest t...
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ژورنال
عنوان ژورنال: Acta Horticulturae
سال: 2002
ISSN: 0567-7572,2406-6168
DOI: 10.17660/actahortic.2002.586.174