Analysis of the effects of herbicides on cotton yield trends

Reddy, V. R.; Baker, Dana Lee; Whisler, F. D.; McKinion, James M.

doi:10.1016/0308-521x(90)90060-4

Cited by 8 publications

(4 citation statements)

References 8 publications

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“…In particular, some pesticides may disrupt photosynthesis, thereby decreasing both growth and yield. Such an effect has been shown for several fungicides , on many crops (Petit et al 2012 ), and for some herbicides, on cotton (Reddy et al 1990 ) and soybean (Hagood et al 1980 ). Similarly, insecticide treatments may also lower yields when applied to lettuce (Toscano et al 1982 ) and cotton (Youngman et al 1990 ).…”

Section: Damage To Plants Algae and Coralsmentioning

confidence: 80%

The Hidden and External Costs of Pesticide Use

Bourguet

Guillemaud

2016

Sustainable Agriculture Reviews

215

113

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A fair evaluation of the net benefi ts provided by pesticides is essential to feed the current debate on their benefi ts and adverse consequences. Pesticides provide many benefi ts by killing agricultural and human pests. However, they also entail several types of costs, including internal costs due to the purchase and application of pesticides, and various other costs due to the impact of treatments on human health and the environment. Here, we provide a comprehensive review of these costs and their evaluation. We defi ne four categories of costs: regulatory costs, human health costs, environmental costs and defensive expenditures. Those costs are either internal to the market, but hidden to the users, or external to the market and most often paid by a third party. We analysed 61 papers published between 1980 and 2014, and 30 independent dataset. Regulatory costs reached very large values, e.g. US$4 billion yearly in the United States in the 2000s. However, if all regulations were respected, these costs would have jumped to US$22 billion in this country. Health costs studies generally did not take into account fatal cases due to chronic exposure such as fatal outcomes of cancers. Doing so would have increased estimates of health costs by up to tenfold, e.g. from US$1.5 billion to US$15 billion in the United States in 2005. Most environmental impacts have never been quantifi ed in the literature. Environmental costs were nevertheless estimated to up to US$8 billion in the United States in 1992. Although defensive expenditures have rarely been considered in the literature, they include at least the extra cost of the part of organic food consumption due to aversive behavior linked to pesticide use. This cost reached more than US$6.4 billion worldwide in 2012. Our review thus revealed that the economic costs of pesticide use have been seldom considered in the literature and have undoubtedly

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Section: Damage To Plants Algae and Coralsmentioning

confidence: 80%

The Hidden and External Costs of Pesticide Use

Bourguet

Guillemaud

2016

Sustainable Agriculture Reviews

215

113

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“…However, inappropriate or poorly timed herbicide applications also can have unintended side‐effects on crop performance and the environment. Previous research has shown that the excessive or careless use of certain herbicides can not only cause herbicide injury problems to crops (Baker & Fullwood 1986; Reddy et al . 1990), but also have detrimental effects on the surfacewater and groundwater quality (Albanis et al .…”

Section: Introductionmentioning

confidence: 99%

Use of airborne multispectral imagery to discriminate and map weed infestations in a citrus orchard

Ye¹,

Sakai

Asada

et al. 2007

Weed Biology and Management

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Reliable information on weed abundance and distribution within fields is essential for weed management in agricultural systems. Such information is necessary to adopt localized and variable rates of herbicide spraying, thus reducing chemical waste, crop damage, and environmental pollution. This paper examined the potential of airborne multispectral imagery to discriminate and map weed infestations in an experimental citrus orchard in Japan. Using an airborne digital sensor, multispectral imagery was acquired over the study site on 10 April 2003. The obtained reflectance imagery was analyzed using an image object-based approach in eCognition. After creating image objects on the image, the spectral information for weeds and citrus, represented by corresponding selected sample image objects, was extracted. Significant differences in the spectral characteristics between weeds and citrus were observed in each of the red, green, and blue wavebands. The simple average values of these wavebands were used to classify image objects with the nearest neighbor algorithm. Maps were generated with different classes or levels of class groups. A subsequent accuracy assessment demonstrated that the weeds were successfully discriminated from other image objects with a classification accuracy of 99.07%. Therefore, maps generated based on the classification result could provide valuable information for developing a site-specific weed management program for the study orchard.

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“…It has been shown that the uptake and translocation of many herbicides can be affected by growth stage as well as relative humidity, soil moisture, temperature, and mixture with other herbicides and surfactants (Gaskin and Holloway 1992;Pline et al 2001a;Reddy 2000;Reddy et al 1990;Sherrick et al 1986;Waldecker and Wyse 1985;Wills 1978). Postemergence over-the-top broadcast applications of glyphosate that occur after the fourth true leaf of cotton growth can result in lower yields and are not permitted by registration directions (Edenfield et al 2000;Light et al 2003;Pline-Srnic et al 2004;Viator et al 2000).…”

mentioning

confidence: 99%

Glyphosate-Resistant Cotton Response to Glyphosate Applied in Irrigated and Nonirrigated Conditions

et al. 2007

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Field experiments were conducted in Alabama during 1999 and 2000 to test the hypothesis that any glyphosate-induced yield suppression in glyphosate-resistant cotton would be less with irrigation than without irrigation. Yield compensation was monitored by observing alterations in plant growth and fruiting patterns. Glyphosate treatments included a nontreated control, 1.12 kg ai/ha applied POST at the 4-leaf stage, 1.12 kg/ha applied DIR at the prebloom stage, and 1.12 kg/ha applied POST at 4-leaf and postemergence directed (DIR) at the prebloom cotton stages. The second variable, irrigation treatment, was established by irrigating plots individually with overhead sprinklers or maintaining them under dryland, nonirrigated conditions. Cotton yield and all measured parameters including lint quality were positively affected by irrigation. Irrigation increased yield 52% compared to nonirrigated cotton. Yield and fiber quality effects were independent of glyphosate treatments. Neither yield nor any of the measured variables that reflected whole plant response were influenced by glyphosate treatment or by a glyphosate by irrigation interaction.

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Analysis of the effects of herbicides on cotton yield trends

Cited by 8 publications

References 8 publications

The Hidden and External Costs of Pesticide Use

The Hidden and External Costs of Pesticide Use

Use of airborne multispectral imagery to discriminate and map weed infestations in a citrus orchard

Glyphosate-Resistant Cotton Response to Glyphosate Applied in Irrigated and Nonirrigated Conditions

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