NEW ENTOMOPATHOGENIC NEMATODES ACTIVE AT LOW TEMPERATURES

The nematodes belong to a strain of the species S. kraussei and are active at relatively low temperatures. For example, when the nematodes are applied in the infectious stage at a density of 500,000/m of agricultural soil where O. sulcatus larvae are present and which is kept at a constant temperatu...

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Bibliographic Details
Main Authors RICCI, MANUELE, FRIDLENDER, BERTOLD
Format Patent
LanguageEnglish
French
Published 04.11.1999
Edition6
Subjects
AGRICULTURE
ANIMAL HUSBANDRY
BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES
FISHING
FORESTRY
HUMAN NECESSITIES
HUNTING
PEST REPELLANTS OR ATTRACTANTS
PLANT GROWTH REGULATORS
PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF
TRAPPING
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Summary:The nematodes belong to a strain of the species S. kraussei and are active at relatively low temperatures. For example, when the nematodes are applied in the infectious stage at a density of 500,000/m of agricultural soil where O. sulcatus larvae are present and which is kept at a constant temperature of 5 DEG C, they cause a mortality rate of the larvae of at least 50 % after 14 days or at least 70 % after a period of 28 days. Insecticidal formulations and a method for protecting plants from insects are also disclosed. Ces nématodes, qui appartiennent à une souche de l'espèce S. kraussei, sont actifs à des températures relativement basses. Ainsi par exemple, lorsqu'on applique ces nématodes pendant la phase infectieuse à raison de 500.000 unités par m de sol agricole chargé de larves de O. sulcatus maintenu à une température constante de 5 DEG C, on aboutit à un taux de mortalité des larves d'au moins 50 % au bout de 14 jours et d'au moins 70 % au bout de 28 jours. L'invention concerne également des formulations d'insecticides ainsi qu'un procédé permettant de protéger des plantes contre un insecte.
Bibliography:Application Number: WO1999IL00218