Haupka katrin (6 resultados)
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Librería: California Books, Miami, FL, Estados Unidos de AmericaCalifornia Books
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EUR 23,14
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Condición: New.
- Tapa blanda
Librería: AHA-BUCH GmbH, Einbeck, AlemaniaAHA-BUCH GmbH
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EUR 15,95
Envío por EUR 60,23Se envía de Alemania a Estados Unidos de AmericaCantidad disponible: 1 disponibles
Taschenbuch. Condición: Neu. Druck auf Anfrage Neuware - Printed after ordering - Studienarbeit aus dem Jahr 2010 im Fachbereich Agrarwissenschaften, Justus-Liebig-Universität Gießen, Veranstaltung: Produktionsverfahren im organischen Landbau, Sprache: Deutsch, Abstract: The neem tree (Azadirachta indica A. Juss.) contains a var…ious number of biologically active ingredients. In plant protection mostly the insecticidal activity of neem products is important. Among these insecticidal active ingredients azadirachtin is the most important in biological pest management. Neem derivates influence insects in various ways. First they have an repellent effect, the insects avoid plants after neem application. Females of some lepidopterous insects also seem to avoid these plants and will not lay there eggs under them. Also there are antifeedant effects of neem, so that insects will not feed from neem-treatened plants or, when they feed, the food intake is significantly reduced.Neem ingredients also have an effekt on the methamorphosis of insects. So treatment with azadirachtin delayed moulting of Periplaneta americana for several days. Moulting, if it occurred was incomplete an resulted in the death of the insects subjected to the test. Some insect species will not moult into the imagine after neem treatment.
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Librería: Buchpark, Trebbin, , AlemaniaBuchpark
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EUR 12,74
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Condición: Sehr gut. Zustand: Sehr gut | Sprache: Deutsch | Produktart: Bücher | Studienarbeit aus dem Jahr 2010 im Fachbereich Agrarwissenschaften, Justus-Liebig-Universität Gießen, Veranstaltung: Produktionsverfahren im organischen Landbau, Sprache: Deutsch, Abstract: The neem tree (Azadirachta indica A. Juss.) contains a vari…ous number of biologically active ingredients. In plant protection mostly the insecticidal activity of neem products is important. Among these insecticidal active ingredients azadirachtin is the most important in biological pest management. Neem derivates influence insects in various ways. First they have an repellent effect, the insects avoid plants after neem application. Females of some lepidopterous insects also seem to avoid these plants and will not lay there eggs under them. Also there are antifeedant effects of neem, so that insects will not feed from neem-treatened plants or, when they feed, the food intake is significantly reduced.Neem ingredients also have an effekt on the methamorphosis of insects. So treatment with azadirachtin delayed moulting of Periplaneta americana for several days. Moulting, if it occurred was incomplete an resulted in the death of the insects subjected to the test. Some insect species will not moult into the imagine after neem treatment.
- Tapa blanda
- Impresión bajo demanda
Librería: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , AlemaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Studienarbeit aus dem Jahr 2010 im Fachbereich Agrarwissenschaften, Justus-Liebig-Universität Gießen, Veranstaltung: Produktionsverfahren im organischen Landbau, Sprache: Deutsch, Abstract: The neem tree (Azadirachta indica A. Juss.…) contains a various number of biologically active ingredients. In plant protection mostly the insecticidal activity of neem products is important. Among these insecticidal active ingredients azadirachtin is the most important in biological pest management. Neem derivates influence insects in various ways. First they have an repellent effect, the insects avoid plants after neem application. Females of some lepidopterous insects also seem to avoid these plants and will not lay there eggs under them. Also there are antifeedant effects of neem, so that insects will not feed from neem-treatened plants or, when they feed, the food intake is significantly reduced.Neem ingredients also have an effekt on the methamorphosis of insects. So treatment with azadirachtin delayed moulting of Periplaneta americana for several days. Moulting, if it occurred was incomplete an resulted in the death of the insects subjected to the test. Some insect species will not moult into the imagine after neem treatment. 20 pp. Deutsch.
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Librería: buchversandmimpf2000, Emtmannsberg, BAYE, Alemaniabuchversandmimpf2000
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EUR 15,95
Envío por EUR 60,00Se envía de Alemania a Estados Unidos de AmericaCantidad disponible: 1 disponibles
Taschenbuch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Studienarbeit aus dem Jahr 2010 im Fachbereich Agrarwissenschaften, Justus-Liebig-Universität Gießen, Veranstaltung: Produktionsverfahren im organischen Landbau, Sprache: Deutsch, Abstract: The neem tree (Azadirachta indica A. Juss.) co…ntains a various number of biologically active ingredients. In plant protection mostly the insecticidal activity of neem products is important. Among these insecticidal active ingredients azadirachtin is the most important in biological pest management. Neem derivates influence insects in various ways. First they have an repellent effect, the insects avoid plants after neem application. Females of some lepidopterous insects also seem to avoid these plants and will not lay there eggs under them. Also there are antifeedant effects of neem, so that insects will not feed from neem-treatened plants or, when they feed, the food intake is significantly reduced.Neem ingredients also have an effekt on the methamorphosis of insects. So treatment with azadirachtin delayed moulting of Periplaneta americana for several days. Moulting, if it occurred was incomplete an resulted in the death of the insects subjected to the test. Some insect species will not moult into the imagine after neem treatment.Books on Demand GmbH, Überseering 33, 22297 Hamburg 20 pp. Deutsch.
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Librería: preigu, Osnabrück, Alemaniapreigu
Contactar con el vendedorVendedor de 5 estrellasCondición: Nuevo
EUR 15,95
Envío por EUR 70,00Se envía de Alemania a Estados Unidos de AmericaCantidad disponible: 5 disponibles
Taschenbuch. Condición: Neu. Neem-Inhaltsstoffe im organischen Landbau | Katrin Haupka | Taschenbuch | 20 S. | Deutsch | 2010 | GRIN Verlag | EAN 9783640642489 | Verantwortliche Person für die EU: GRIN Publishing GmbH, Waltherstr. 23, 80337 München, info[at]grin[dot]com | Anbieter: preigu Print on Demand.
