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One of the major pests of the vegetables, root knot nematodes (Meloidogyne spp.) (Tylenchina: Meloidogynidae) (RKNs) can cause economic losses by forming knots on the host plant roots. RKNs are more prevalent in the greenhouse vegetable growing areas of the coastal regions. In this study, the effects of plant extracts from five different plants; Capsicum frutescens, Hyoscyamus niger (Solanaceae), Melia azedarach (Meliaceae), Xanthium strumarium and Achillea wilhelmsii (Asteraceae) were evaluated against RKNs. In the first studies; the effects of plant extracts (0.5, 1.0, 1.5, 3.0, 6.0 and 12.0 ...Более
Potential of three native Turkish isolates of entomopathogenic nematodes (EPNs) (Steinernema feltiae, S. carpocapsae and Heterorhabditis bacteriophora) was evaluated against Holotrichapion pullum (Gyllenhal) (Coleoptera, Apionidae) under laboratory conditions. Suspensions of EPNs were applied at three concentrations (500, 1000 and 2000 IJs ml-1) and at two temperatures (15 and 20°C). After one week, mortality rate of H. pullum adults was assessed. Mortality rate was higher in the nematode treatments than in the control. All nematodes showed more effect depending on temperature increase. At 20° ...Более
The gen us of roo t lesio n nematod es (RLN), Pratylench us, feeds an d reprodu ces in the roo t co rtex of man y plant s pecies. RLN was rep roduced on carrot cu lture by using a pu re cu lture. In vitro tes ts were carried out to determine the effects of plant extracts from three ind igenous plants: h enbane, Hyoscyamus niger; b ead-tree, Melia a zedarah and commo n cocklebu r, Xanth ium strumarium on P. tho rn ei (the major wh eat root-les ion nematode). The nematodes were expos ed for 12, 24, 48, 72 an d 96 hrs in three concen tratio ns of plant extracts. Th e effect of plant extracts was ...Более