Corn Health Articles
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Insecticidal Proteins: A Promising Solution for Pest Control
Pests, such as insects, pose a significant threat to agriculture and public health. Traditional methods of pest control, such as chemical pesticides, have raised concerns about their impact on the environment and human health. In recent years, there has been a growing interest in the development of alternative pest control strategies, and one promising approach is the use of insecticidal ...
By Lifeasible
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Agronomic Modeling and AI Improving Results for Farmers
How does the GroGuru solution use AI to improve results seen by farmers? In a few ways! In this interview clip with Patrick Henry, CEO and our Chief Agronomist, David Sloane, they discuss the various tech specifics of how the GroGuru underground system works in regards to AI. Watch the clip here: Patrick: GroGuru doesn’t just do soil moisture, temperature sensing, and soil salinity ...
By GroGuru
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Combat insect and crop disease after harvest
Maize harvest is particularly early this season. It also means early preparation to remove stalk stubble so insects like corn borers and leafrollers have no chance to leave everlasting damage to future crops. The Major Cyclone mower is designed for this purpose: to destroy the tough crop stubble. Conventional mulchers – including flails – quickly reach their limits in the fields and ...
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Environmental Groups File Opening Briefs Challenging EPA’s Decision to Register Enlist Duo
On October 23, 2015, in the U.S. Court of Appeals for the Ninth Circuit, the Natural Resources Defense Council (NRDC) and other environmental groups including the Center for Food Safety (CFS, et al.) (together, Petitioners) filed separate opening briefs in Case Nos. 14-73353 and 14-73359 (consolidated) arguing that the U.S. Environmental Protection Agency’s (EPA) decision to register Dow ...
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The complex nature of GMOs calls for a new conversation
An honest discussion of genetically modified organisms must move beyond narrow concepts of human health to the wider social and environmental impacts of engineered crops. The GMO debate is one from which I’ve kept a purposeful distance. For one thing, it’s an issue that has already garnered more than its fair share of attention. For another, when you consider that many domesticated ...
By Ensia
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No impact of DvSnf7 RNA on honey bee (Apis mellifera L.) adults and larvae in dietary feeding tests
The honey bee, Apis mellifera L. is the most important managed pollinator species worldwide and plays a critical role in pollination of a diverse range of economically important crops. Due to this species' importance to agriculture and its historical use as a surrogate species for pollinators to evaluate the potential adverse effects for conventional, biological and microbial pesticides, as ...
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Response of bt and near-isoline corn hybrids to plant density
Transgenic Bt (Bacillus thuringiensis) corn (Zea mays L.) hybrids with resistance to corn rootworm (CRW; Diabrotica spp.) or European corn borer [ECB; Ostrinia nubilalis (Hübner)] can have greater tolerance to water and nutrient stress, and thus may have higher optimum plant densities. Experiments were conducted following soybean [Glycine max (L.) Merr.] over nine site-years in Illinois to ...
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Soil quality and corn yield under crop–livestock integration in Illinois
Compared with traditional cropping systems, integrated crop–livestock systems have shown greater efficiency in improving soil quality and crop yield. The objective of this study was to determine how an integrated crop–livestock system affected soil properties and corn (Zea mays L.) yield when compared with continuous corn (CC). The study was conducted from 2004–2008 on a large-scale research farm ...
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Stacked corn hybrids show inconsistent yield and economic responses in New York
Stacked (two to three transgenic traits) corn (Zea mays L.) hybrids represented 40% of U.S. corn in 2008, despite limited agronomic studies. Field-scale studies were conducted on four farms in New York for 2 yr to evaluate the agronomics and economics of double-stacked {glyphosate resistance and Bt (Bacillus thuringiensis) European corn borer [Ostrinia nubilalis (Hübner)] trait} hybrids when ...
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Heterosis decreasing in hybrids: Yield test inbreds
Yield testing finished inbreds to replace preliminary single-cross corn (Zea mays L.) yield tests will increase rate of commercial hybrid yield gains. Studies have shown that heterosis decreased 25%/50 yr, 10%/60 yr, and 35%/100 yr. Natural selection and artificial selection by plant breeders for adaptedness have increased parental inbred and hybrid seed yields, whereas percentage heterosis ...
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Behavior of atrazine in limited irrigation cropping systems in Colorado: prior use is important
Received for publication October 28, 2008. Glyphosate-resistant (GR) corn may be a major component of new cropping systems to optimize the use of limited irrigation water supply while sustaining production. Because atrazine is an important tool for residual weed control in GR corn, we examined atrazine binding to soil, dissipation, movement, and early season weed control in limited and full ...
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Volunteer corn presents new challenges for insect resistance management
Genetically-modified (GM) corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] dominate the North American agricultural landscape and are becoming increasingly important as biofuels. However, as herbicide-tolerance and insecticidal traits are often simultaneously expressed by individual plants, glyphosate [N-(phosphonomethyl) glycine]-resistant (GR) volunteer corn is becoming a widespread ...
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Behavior of atrazine in Limited Irrigation Cropping Systems in Colorado: Prior use is important
Glyphosate-resistant (GR) corn may be a major component of new cropping systems to optimize the use of limited irrigation water supply while sustaining production. Because atrazine is an important tool for residual weed control in GR corn, we examined atrazine binding to soil, dissipation, movement, and early season weed control in limited and full irrigation cropping systems. These systems ...
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Second generation European corn borer injury and Irish potato physiology, yield, and quality
European corn borer (ECB) [Ostrinia nubilalis (Hübner)] (Lepidoptera: Crambidae) is known to infest Irish potato (Solanum tuberosum L.) but only causes economic damage during the first generation in East Coast potato producing areas. However, in Nebraska, second generation ECB infest potato plants during the bulking period and may reduce yield and/or potato quality. Experiments were conducted in ...
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No differences in decomposition rates observed between bacillus thuringiensis and non-bacillus thuringiensis corn residue incubated in the field
Recent speculation of slower residue decomposition for Bacillus thuringiensis (Bt) corn (Zea mays L.) hybrids compared with non-Bt corn hybrids has prompted investigative study. We evaluated the residue decomposition rates of Bt and non-Bt corn hybrids over a period of 22 mo under field conditions using the litter bag technique. The four corn hybrids used were (i) DKC60–16 (Bt+, Cry1Ab protein ...
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Seed-applied insecticides inconsistently affect corn forage in continuous corn
Western corn rootworm (Diabrotica virgifera virgifera Le Conte) is the major insect pest in the corn phase of a corn (Zea mays L.) silage–perennial forage rotation. Dairy producers may prefer seed-applied instead of soil-applied insecticides for rootworm control because of ease of use and additional control of some other soil insect pests. The objective of the 2-yr NY field study was to evaluate ...
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