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Use of succinate dehydrogenase inhibitors for controlling powdery mildew primary infections

a technology of succinate dehydrogenase inhibitor and primary infection, which is applied in the direction of biocide, heterocyclic compound active ingredients, dead animal preservation, etc., to achieve the effect of reducing the number of primarily infected shoots and high efficacy

Inactive Publication Date: 2015-01-22
BAYER CROPSCIENCE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes the use of a chemical called succinate dehydrogenase inhibitor to reduce the number of early infected shoots in trees, which in turn delays infection in new growth. This is good news for farmers as it helps them better protect their orchards.

Problems solved by technology

However, powdery mildew can overwinter in buds to produce early infections the year after (primary infected shoots).

Method used

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  • Use of succinate dehydrogenase inhibitors for controlling powdery mildew primary infections

Examples

Experimental program
Comparison scheme
Effect test

examples

[0053]Fluopyram was tested in apples orchard in comparison with already know fungicides active against Powdery mildew such as triadimenol (Bayleton) and boscalid.

[0054]Fluopyram was applied at range of rates: 18.5g-25 g-37.5-50 g a.s. / ha / meter canopy height (g ha / m c.h.). Bayleton was applied at 25 g a.s. / ha / m c.h. Boscalid (Cantus WG50) was applied at 125 g a.s. / m c.h.

Trial conditions

[0055]During the spray season, the compounds were applied at apple susceptible stages from BBCH09 (green leaf tips 5 mm above bud scales to BBCH73 Fruit size between 20 and 40mm (as described in BBCH Monograph, 2. Edition, 2001, edited by Uwe Meier, Federal Biological Research Centre for Agriculture and Forestry) in order to protect leaves, buds and shoots against Powdery mildew. The compounds have been applied eight times with an interval of ten days during spray season.

Assessment

[0056]The type of assessments of infections was:

[0057]% infested area on leaves (severity) and % infested leaves (incidenc...

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Abstract

The present invention relates to the use of succinate dehydrogenase Inhibitors for controlling powdery mildew primary infections in crops and to a method for controlling those primary infections.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application is a Continuation application of U.S. application Ser. No. 12 / 696,776 (filed Jan. 29, 2010), which claims priority to EP 09356006.8 (filed Jan. 30, 2009) the contents of all are incorporated herein by reference in their entirety.BACKGROUND[0002]1. Field of the Invention[0003]The present invention relates to the use of succinate dehydrogenase inhibitors for controlling powdery mildew primary infections in crops and to a method for controlling those primary infections.[0004]2. Description of Related Art[0005]Powdery mildew is a fungal disease that affects a wide range of plants. Powdery mildew diseases are caused by many different species of fungi in the order Erysiphales. It is one of the easier diseases to spot, as its symptoms are quite distinctive. Infected plants display white powder-like spots on the leaves and stems and specific russeting on fruits. The younger leaves are the most affected, but the mildew can appear o...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A01N43/40
CPCA01N43/40A01N43/56A01N43/653A01N45/02A01N2300/00
Inventor LABOURDETTE, GILBERTLACHAISE, HELENEDE MAEYER, LUKFERYN, CHRISTIAN
Owner BAYER CROPSCIENCE AG
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