-
()
-




@Mail.ru .
[ ]

^: *http://esa.publisher.ingentaconnect.com/content/esa
^: Razmjou J.; Mohammadi M.; Hassanpour M.
^: Effect of Vermicompost and Cucumber Cultivar on Population Growth Attributes of the Melon Aphid (Hemiptera: Aphididae) [ (Aphis gossypii) ]
^: Journal of Economic Entomology, 2011; Vol.104,N 4. - P. 1379-1383
^: 2011
+

^: Worldwide, the developing industry of cucumbers (Cucumis sativus L.) grown in greenhouses is threatened by damage from sucking pests, especially aphids. Among these, the melon aphid, Aphis gossypii Glover (Hemiptera: Aphididae), is the most serious. We tested the effect of two cucumber cultivars (Royal' and Storm') and three vermicompost concentrations (0 [control], 20, and 30%) in field soil on the development and fecundity rates of A. gossypii, by using a randomized complete block design with four replicates as a factorial experiment. The developmental times of nymphs reared on plants grown into the three vermicompost concentrations ranged from 5.5 (0%) to 8.7 (30%) d (on Storm) and from 4.3 (0%) to 7 (30%) d (on Royal). The developmental time of melon aphid's nymphs was greatest on plants grown in the culture medium with 30% vermicompost rate and least on plants reared in the soil without vermicompost. The intrinsic rate of natural increase (rm ) of A. gossypii ranged from 0.204 d−1 on plants grown in the soil amended with 30% vermicompost rate (on Storm seedlings) to 0.458 d−1 on plants grown in the soil without vermicompost (on Royal seedlings). Accordingly, our findings confirm that a combination of a low level of vermicompost and a partially resistant cucumber cultivar might play an important role in managing this aphid on cucumbers in greenhouses. aref1

^TRN: 1391125
^:
^:
+



        

1998-2016 ©