Studies on insect pests, mites and fungal diseases on cucumber grown under plastic houses in the Central Jordan Valley [Bemisia tabaci, Aphis, Thrips, Tetranychus, Pseudoperononspora cubensis, Erysiphe cichoracearum, Sclerotinia sclerotiorum, Fusarium oxysporium, Alternaria cucumerina, Cladosporium cucumerinum]
1989
Miqdadi, G.M.A.
The population trends of arthropod pests, fungal diseases incidence and severity were studied on Sahara cucumber cultivar grown under a plastic house. Studies were carried out in 1987-1988 in two planting dates: 1. the autumn planting and 2. the winter planting. Aphids appeared regularly in the two growing seasons and the red mite appeared in large number for relatively long period in the late growing season. Consequently, they were considered key pests. Since the whitefly and the red mite appeared only for a short period in the early growing season and thrips appeared for a brief period in late growing season they were considered secondary pests. Powdery mildew and the downy mildew infected cucumber plants regularly in the two growing seasons and were considered key pest. The leaf mold appeared for a brief period in the two growing seasons. The cottony white rot infected plant for a short period in the early growing season and was considered a secondary pest. The respective arthropod pests and fungal diseases were affected either positively or negatively with prevailed temperature and relative humidity
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