Insect resistant crops may have area wide suppression benefits

decrease font size  Resize text   increase font size       Printer-friendly version of this article Printer-friendly version of this article

Since their first successful commercial introduction in the United States in 1996, genetically engineered (GE) seeds have been widely adopted by U.S. corn, cotton, and soybean farmers.

In 2013, 169 million acres of GE corn, cotton, and soybean were planted, accounting for about half of U.S. land used for crops.

One trait engineered into GE corn and cotton is resistance to certain insects (by introducing a gene from the soil bacterium Bacillus thuringiensis (Bt)), protecting the plant over its entire life cycle.

Bt corn was planted on 19 percent of corn acres in 2000, 35 percent in 2005, and 76 percent in 2013.

click image to zoom Over this period, insecticide use on corn has declined for both Bt adopters and nonadopters.

These trends are consistent with research findings that area-wide suppression of certain insects is associated with Bt crop use, benefiting not only Bt adopters but non-adopters as well.

However, there are some recent indications that insect resistance is developing to some Bt traits in some areas, which may increase insecticide use compared to the 2010 low levels.

The chart can be found in Genetically Engineered Crops in the United States, ERR-162, February 2014.


Buyers Guide

Doyle Equipment Manufacturing Co.
Doyle Equipment Manufacturing prides themselves as being “The King of the Rotary’s” with their Direct Drive Rotary Blend Systems. With numerous setup possibilities and sizes, ranging from a  more...
A.J. Sackett Sons & Company
Sackett Blend Towers feature the H.I.M, High Intensity Mixer, the next generation of blending and coating technology which supports Precision Fertilizer Blending®. Its unique design allows  more...
R&R Manufacturing Inc.
The R&R Minuteman Blend System is the original proven performer. Fast, precise blending with a compact foot print. Significantly lower horsepower requirement. Low inload height with large  more...
Junge Control Inc.
Junge Control Inc. creates state-of-the-art product blending and measuring solutions that allow you to totally maximize operating efficiency with amazing accuracy and repeatability, superior  more...
Yargus Manufacturing
The flagship blending system for the Layco product line is the fully automated Layco DW System™. The advanced technology of the Layco DW (Declining Weight) system results in a blending  more...
Yargus Manufacturing
The LAYCOTE™ Automated Coating System provides a new level of coating accuracy for a stand-alone coating system or for coating (impregnating) in an automated blending system. The unique  more...
John Deere
The DN345 Drawn Dry Spreader can carry more than 12 tons of fertilizer and 17.5 tons of lime. Designed to operate at field speeds up to 20 MPH with full loads and the G4 spreader uniformly  more...
Force Unlimited
The Pro-Force is a multi-purpose spreader with a wider apron and steeper sides. Our Pro-Force has the most aggressive 30” spinner on the market, and is capable of spreading higher rates of  more...
BBI Spreaders
MagnaSpread 2 & MagnaSpread 3 — With BBI’s patented multi-bin technology, these spreaders operate multiple hoppers guided by independent, variable-rate technology. These models are built on  more...


Comments (0) Leave a comment 

Name
e-Mail (required)
Location

Comment:

characters left


Grain Storage Systems

Behlen Grain Storage Systems offers large capacity bins with diameters from 16’ to 157’ and capacities exceeding 1,500,000 bushels. All ... Read More

View all Products in this segment

View All Buyers Guides

Feedback Form
Feedback Form