Wyniki wyszukiwania

1

Neem seed extract against Mamestra brassicae in field-grown cabbage

100%

Meadow R., Seljasen R.

Vegetable Crops Research Bulletin

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2000

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tom 52

2

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Twenty five years of azadirachtins (1986-2011)

84%

Hummel H. E., Hein D. F., Ley S. V., Morgan E. D., Kraus W., Schmutterer H.

Pestycydy

|

2011

|

nr 1-4

Azadirachtins are known as phagorepellent natural products from seeds of the neem tree Azadirachta indica A. Juss (Meliaceae), which impede the development of larval insects and sterilize adults. The labors of the past three decades ultimatively lead to a chemical structure, which has been unanimously but independently elaborated by German, British and American authors. This structure is in force ever since 1985/87 and was ultimately confirmed by Veitch & al. in Ley’s group in Cambridge, England, through total synthesis. Its 25th birthday is presently being celebrated. Marrangin (=Azadirachtin L) was discovered in Gießen and chemically identified by Kalinowski and colleagues. It occurs in seeds of the marrango tree, Azadirachta excelsa (Jack) Jacobs. In some insect species but also in mites like Tetranychus urticae, its biological activity is significantly superior to azadirachtin A. The value of these biorational compounds, with their very low vertebrate toxicity, and their low toxicity today is globally recognized. Quite recently, azadirachtin and analogues gain acceptance in veterinary and human medicine.

3

In vitro evaluation of antagonistic microorganisms for the control of die-back of neem causal agent Phomopsis azadirachtae

84%

Girish K., Bhat S. S., Raveesha K. A.

Journal of Plant Protection Research

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2009

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tom 49

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nr 4

362-368

The die-back of neem caused by Phomopsis azadirachtae is a devastating disease in India reducing the life span and seed production of neem. Six isolates of antagonistic bacteria and fungi, Bacillus cereus (MTCC 430), B. subtilis (MTCC 619), Pseudomonas aeruginosa (MTCC 2581), P. oleovorans (MTCC 617), Trichoderma harzianum (MTCC 792) and T. viride (MTCC 800) were evaluated against P. azadirachtae under in vitro conditions. Culture filtrates of all these microorganisms were extracted using ethyl acetate, and the obtained fractions were tested for their antifungal activity against P. azadirachtae at different concentrations. Ethyl acetate extracts of B. subtilis and P. aeruginosa were highly effective and completely inhibited the growth of P. azadirachtae at 25 ppm concentration. Both these isolates may be considered as factors for the biological control of die-back of neem.

4

Effectiveness of new plant insecticides obtained from neem-tree [Azadirachta indica Juss.] against cabbage aphid [Brevicoryne brassicae]

84%

Pavela R., Barnet M., Belanger A., Brosseau M.

Vegetable Crops Research Bulletin

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2002

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tom 56

5

Mozliwosci stosowania naturalnych pestycydow z miodli indyjskiej [Azadirachta indica A. Juss] i innych roslin z rodziny Meliaceae w ochronie roslin ze szczegolnym uwzglednieniem ochrony lasu

59%

Malinowski H., Woreta D.

Progress in Plant Protection

|

1997

|

tom 37

|

nr 1

131-137

6

Zwalczanie owocowki jablkoweczki w jabloniowych sadach ekologicznych

51%

Pluciennik Z., Olszak R. W.

Progress in Plant Protection

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2007

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tom 47

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nr 4

298-301

Ograniczanie wyników

2 Progress in Plant Protection

2 Vegetable Crops Research Bulletin

1 Journal of Plant Protection Research

1 Pestycydy

1 Barnet M.

1 Belanger A.

1 Bhat S. S.

1 Brosseau M.

1 Girish K.

1 Hein D. F.

1 Hummel H. E.

1 Kraus W.

1 Ley S. V.

1 Malinowski H.

1 Meadow R.

1 Morgan E. D.

1 Olszak R. W.

1 Pavela R.

1 Pluciennik Z.

1 Raveesha K. A.

1 Schmutterer H.

1 Seljasen R.

1 Woreta D.

1 2011

1 2009

1 2007

1 2002