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Treatment of transgenic corn seeds with pesticide

A technology of genetically modified corn and pesticides, applied in biocides, genetic engineering, plant genetic improvement, etc., can solve the problems of not providing, not pointing out, limiting successful use, etc., and achieve the effect of reducing the application ratio

Inactive Publication Date: 2004-02-18
MONSANTO TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, while U.S. Patent 5,876,739 claims that treating corn seeds with a coating comprising a specific insecticide protects the roots of corn from damage by corn-eating insects, it does not indicate or suggest that such treatments can be used on seeds with transgenic events
[0020] Treatment of seeds bearing transgenic events with nitroimino or nitroguanidinium compound insecticides has been mentioned (see e.g. WO99 / 35913), however, no guidance has been found regarding the possible application or efficacy of such treatments, or A detailed description of how such a treatment might work - such as the amount of active ingredient necessary per unit number of seeds - is provided without any implementation that would give reason to believe that the proposed treatment will actually provide adequate protection example
[0021] Thus, while recent advances in plant genetic engineering have increased the ability to protect plants from pests without the use of chemical pesticides, and although such techniques have mitigated the detrimental effects on the environment, but there are still many issues that limit the successful use of these methods in real field conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097] Corn seeds were prepared with transgenic events effective against corn insectivores and such seeds were treated with imidacloprid (Gaucho(R)) and tefluthrin (Raze(R)).

[0098] Maize seeds were prepared to express the Bacillus thuringiensis endotoxin Cry3Bb.11231 or Cry3Bb.11098 by the method described in WO 99 / 31248 for these respective events.

[0099] Maize seeds of the same hybrid species with or without each transgenic event were treated with imidacloprid (available as GAUCHO® from Bayer Corp.) or tefluthrin (available as RAZE® from Wilbur-Ellis Co., Great Falls) as described below. , Mont.; Walla Walla, WA). Seed treatment formulations of the desired insecticides were prepared by mixing measured amounts of the insecticide in water as a carrier and applying the resulting formulations to measured weights of maize seeds in a rotary static seed treater at room temperature for 1 minute. The respective weights of the insecticide formulation and corn seed are calculate...

Embodiment 2

[0103] A field trial to determine the efficacy of transgenic event Cry3Bb.11231 in combination with corn insecticide seed treatments in corn seeds against western and northern corn insectivores.

[0104] Conduct field trials in accordance with the protocol and in compliance with USDA notification requirements. The purpose of these experiments was to determine the efficacy of the combination of the transgenic event Cry3Bb.11231 in corn seeds with a corn insecticide seed treatment against western and northern corn insectivores.

[0105] For each growing location selected, the plot design included the following: Row Spacing: 30 inches Trial Size: 4 Rows x 20 Seeding Density: 2.0 Seed Feet Hybrids Used: LH198 x LH185 or RX670 Replication Trials: 4 Designs : Random complete block Location: 4 Larval source: Supplement natural infection by artificial infection with 400 eggs / ft (growth stage V2)

[0106] Use the following seed treatment combinations for each growing area: Numbering...

Embodiment 3

[0121] A field trial to determine the efficacy of transgenic event Cry3Bb.11231 in combination with imidacloprid seed treatment in maize seed against western and northern maize carnivores.

[0122] Conduct field trials in accordance with the protocol and in compliance with USDA notification requirements. The purpose of this trial was to determine the efficacy of the combination of the transgenic event Cry3Bb.11231 in maize seeds with maize insectivorous seed treatment with imidacloprid.

[0123] For each growing location selected, the plot design included the following: Row Spacing: 30 inches Trial Size: 4 Rows x 20 Seeding Density: 2.0 seeds / foot Hybrids Used: LH198 x LH185 or RX670 Replication Trials: 4 Design: Randomized complete block Location: 4 Larval source: Supplement natural infection by artificial infection at 400 eggs / ft (growth stage V2)

[0124] Use the following seed treatment combinations for each growing area: Numbering corn seed type Insecticide and amo...

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PUM

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Abstract

A method to protect corn against feeding damage by one or more pests includes the treatment of corn seed having a transgenic event that is targeted against at least one of the pests with a pesticide in an amount that is effective against the same or another of the one or more pests. Seeds having such protection are also disclosed.

Description

[0001] Cross-references to related patents and patent applications [0002] This application is a non-provisional portion of US Provisional Patent Application Serial No. 60 / 238,406, filed October 6, 2000, and claims priority from that provisional application. Background of the invention [0003] (1) field of invention [0004] The present invention relates generally to the control of pests which cause damage to corn plants through their phagocytic activity, and more particularly to the control by the combination of corn seeds having a transgenic event and treating such seeds with an insecticide prior to sowing the seeds Such corn plant pests. [0005] (2) Description of related technologies [0006] It is estimated that 15% of crops are destroyed by insects and related arthropods annually in the United States and even higher in developing countries. In addition, competing weeds and parasitic and saprophytic plants are even more likely to cause yield loss. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N51/00A01N63/00A01N63/02C12N15/29
CPCA01N63/00A01N63/02A01N51/00Y02A40/146A01N53/00A01N61/00Y02A50/30A01N2300/00
Inventor J·阿萨F·C·科恩E·F·桑德斯
Owner MONSANTO TECH LLC
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