Kamooh,, A. (2003). EFFECT OF USING AGRYL, SILVER MULCH, NON INSECTICIDES AND INSECTICIDES AS A METHODS OF EXCLUDING WHITEFLY AND SILVER LEAF DISORDER AFFECTING FALL GROWN SQUASH (Cucurbia pepo, L.). Journal of Plant Production, 28(2), 1301-1310. doi: 10.21608/jpp.2003.245530
A. A. Kamooh,. "EFFECT OF USING AGRYL, SILVER MULCH, NON INSECTICIDES AND INSECTICIDES AS A METHODS OF EXCLUDING WHITEFLY AND SILVER LEAF DISORDER AFFECTING FALL GROWN SQUASH (Cucurbia pepo, L.)". Journal of Plant Production, 28, 2, 2003, 1301-1310. doi: 10.21608/jpp.2003.245530
Kamooh,, A. (2003). 'EFFECT OF USING AGRYL, SILVER MULCH, NON INSECTICIDES AND INSECTICIDES AS A METHODS OF EXCLUDING WHITEFLY AND SILVER LEAF DISORDER AFFECTING FALL GROWN SQUASH (Cucurbia pepo, L.)', Journal of Plant Production, 28(2), pp. 1301-1310. doi: 10.21608/jpp.2003.245530
Kamooh,, A. EFFECT OF USING AGRYL, SILVER MULCH, NON INSECTICIDES AND INSECTICIDES AS A METHODS OF EXCLUDING WHITEFLY AND SILVER LEAF DISORDER AFFECTING FALL GROWN SQUASH (Cucurbia pepo, L.). Journal of Plant Production, 2003; 28(2): 1301-1310. doi: 10.21608/jpp.2003.245530
EFFECT OF USING AGRYL, SILVER MULCH, NON INSECTICIDES AND INSECTICIDES AS A METHODS OF EXCLUDING WHITEFLY AND SILVER LEAF DISORDER AFFECTING FALL GROWN SQUASH (Cucurbia pepo, L.)
The study was carried out during the two successive fall seasons. 1999 and 2000 at Nubaria. A squash hybrid Ambassador was cultivated under the drip irrigation system. Nine treatments were usee as follows: Agryl17. Silver mulch. Azadrachtin. mineral oil. Admire. Silver mulch + Azadrachtin. Silver mulch + mineral oil . Silver mulch + Admire and control (without treatments). The aim of the study is to investigate a reliable strategy using non inseclicidal treatments for reducing the incidence of Silver leaf disorder that affect yield and Quality. The obtained results could be summarized as follows:-
Protected treatments affected the incidence of whitefly infeslation. but decreased significantly the occurrence of whitefly than that of control. Agryl provided comptete prevention of whitefly during the two seasons. Silver mulch treatment showed a high mean counted numbers of whitefly after 33 days from planting. Spraying treatment of both Azodrachtin and mineral oil were significantly reduced the Incidence of whitefly than the treatments Silver mulch and control. Combined treatments of each Silver mulch with Admire and Azadrachtin and mineral oil were insignificantly the efficient ones that greatly reduced the number of whitefly.
No symptoms of squash silver leaf had been detected on plants covered with Agryl. The percentage of infeclion reached 100% on the control plants after 45 days. The combined treatments of Silver mulch + Admire reduced the percentage of infection followed by Silver mulch + Azadrachtin. respectively.
As for total yield. Agryl17 gave the highest significant total yield followed by the combined treatments of Sitver mulch + Azadrachtin and Silver mulch + Admire. respectively. The control treatment showed significantly the lowest total yield.
A positive correlation between the number of whitefly and percentage of infection with correlation coefficient 0.827. On the other hand. a negative correlation was observed between totat yield and number of whitefly with correlation coefficient -0.720.
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