ISSN:
1573-1561
Schlagwort(e):
Aspergillus niger
;
biological control
;
plant-parasitic nematodes
;
Meloidogyne incognita
;
nematicidal activity
;
Caenorhabditis elegans
;
Rotylenchulus reniformis
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
,
Chemie und Pharmazie
Notizen:
Abstract An isolate ofAspergillus niger (designated PD-42) was evaluated in laboratory, greenhouse, and field trials for efficacy in controlling plant-parasitic nematodes. In greenhouse experiments, PD-42 drenches containing spores of PD-42 on oatmeal significantly reduced galling on tomato due to root-knot nematode as compared to untreated controls. In a one-half acre field experiment, PD-42 incorporated in seed coats was associated with significantly increased yield and decreased root-knot galling on pepper. In a second one-half acre field experiment, PD-42 drenches significantly reduced tomato and pepper root galling due toMeloidogyne incognita, and nonsignificant yield increases occurred. In each field experiment, treatment with PD-42 reducedRotylenchulus reniformis populations. The nematicidal components of theA. niger culture filtrates include citric acid, oxalic acid, and undetermined molecules larger than 8000 MW.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02065989
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