Climate Change Influence on Herbicide Efficacy and Weed Management

Jugulam, Mithila; Varanasi, Aruna; Varanasi, Vijaya; Prasad, P. V. Vara

doi:10.1002/9781119180661.ch18

Cited by 8 publications

(5 citation statements)

References 88 publications

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“…The determined CPWC showed that herbicides should be applied for effective herbicide control over the oilseed radish agrocoenosis in the period from germination to the beginning of rosette formation (ВВСH 4-12) at the high technological density of the coenosis, and in the period from the beginning of rosette formation to the beginning of stalking (ВВСН 10-20) in the variants of extremely low density values. This complies with conventional weed control strategy (Harker and O'Donovan, 2013;Andrew et al, 2015;Jugulam et al, 2019).…”

Section: Senecio Vernalissupporting

confidence: 67%

“…Weeds at different densities and species composition can reduce crop yields between 5% and 80% (Singh et al, 2018;Yaduraju and Mishra, 2018). There is also a risk of weeds spreading and growing due to climate change and emergence of weed resistance to a number of herbicides (Jugulam et al, 2019). Weed control is therefore a complex aspect responsible in the overall technological management of crop growth.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of peculiarities of weed formation in oilseed radish agrophytocoenosis using different technological models

Tsytsiura

2020

Chil. j. agric. res.

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There is limited information about the critical period for weed control (CPWC) in oilseed radish (Raphanus sativus L. var. oleiformis Pers.) This significantly limits the effectiveness of the applied technologies in its cultivation. The article focuses on the results of a long-term study (2013 to 2018) of the peculiarities of weed formation in oilseed radish agrophytocoenosis using different sowing technological models according to seeding rate and row spacing parameters. The study included the peculiarities of the species and generic composition of weeds and the basic attributes of the formation of species-specific amounts. The summed dominance ratio (SDR) was heterogeneous and co-oscillatory in the weed structure for both the formation of the number of individual species and their height dominance, which depended on the phenological stage of growth and crop development. In the general spectrum, the prevailing weed forms were identified with the highest potential for oilseed radish plants with an SDR greater than 1.0, which belong to groups I and VI according to environmental plasticity and stability, given the different conditions of the study period for both hydrothermal conditions and year index. In conclusion, a critical period for weed control (CPWC) in oilseed radish agrocoenosis was defined as a 5% reduction in crops ranging from 5 to 45 d after sprouting (DAS) for row sowing and a seeding rate of 4.0 million similar seeds ha-1 and 6 to 60 DAS for a variant of wide row sowing at a seeding rate of 0.5 million similar seeds ha-1 .

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Section: Senecio Vernalissupporting

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Assessment of peculiarities of weed formation in oilseed radish agrophytocoenosis using different technological models

Tsytsiura

2020

Chil. j. agric. res.

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“…The changing climate will affect the temporal and spatial distribution of rainfall, and the frequency of extreme events, such as drought and floods, is likely to increase [2]. Rainfall affects the uptake of herbicide by washing the herbicide droplets from the leaf surface or by reducing the concentration of herbicides due to dilution [91]. Rainfall controls the soil moisture, which in turn affects herbicide efficacy.…”

Section: Precipitation Soil Moisture and Herbicide Efficacymentioning

confidence: 99%

Impact of Futuristic Climate Variables on Weed Biology and Herbicidal Efficacy: A Review

et al. 2023

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Our changing climate will likely have serious implications on agriculture production through its effects on food and feed crop yield and quality, forage and livestock production, and pest dynamics, including troublesome weed control. With regards to weeds, climatic variables control many plant physiology functions that impact flowering, fruiting, and seed dormancy; therefore, an altered climate can result in a weed species composition shift within agro-ecosystems. Weed species will likely adapt to a changing climate due to their high phenotypic plasticity and vast genetic diversity. Higher temperatures and CO2 concentrations, and altered moisture conditions, not only affect the growth of weeds, but also impact the effectiveness of herbicides in controlling weeds. Therefore, weed biology, growth characteristics, and their management are predicted to be affected greatly by changing climatic conditions. This manuscript attempted to compile the available information on general principles of weed response to changing climatic conditions, including elevated CO2 and temperature under diverse rainfall patterns and drought. Likewise, we have also attempted to highlight the effect of soil moisture dynamics on the efficacy of various herbicides under diverse agro-ecosystems.

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“…Climate change can affect weed biology, weed dynamics, phenology, and management by affecting various physiological and biochemical processes. Weed plants react to the changing climate, which has serious consequences for weed management, especially using herbicides [28,29].…”

Section: Introductionmentioning

confidence: 99%

Rationalizing Herbicide Use in Maize within the Framework of Climatic Change and Extreme Hydrometeorological Phenomena

Begović,

Dudić,

Meseldžija

et al. 2023

Sustainability

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The aim of this study was to investigate specific management methods for controlling weeds under different climate conditions by reducing the risk of herbicide resistance in maize. Herbicide trials were placed at two locations during 2017 and 2018 and organized in a randomized block design with four replicates of all herbicide combinations (terbuthylazine—pre-emergence and mesotrione post-emergence treatment, terbuthylazine + mesotrione in post-emergence treatment, and terbuthylazine—pre-emergence and dicamba in post-emergence treatment). In the trials, 13 specific weeds were observed. High effectiveness was achieved when using commercial preparations with two active ingredients (terbuthylazine and mesotrione) in both years of research. As the year 2018 featured a higher amount of precipitation, uneven weed sprouting occurred, which resulted in a large number of Setaria glauca (18.50 No m−2), Solanum nigrum (16.50 No m−2), Datura stramonium (13.75 No m−2), and Chenopodium hybridum (10.50 No m−2) plants. Herbicide phytotoxicity was not expressed in maize. Ambrosia artemisiifolia, Solanum nigrum, and Datura stramonium had the highest competitive index (CI 10). The highest maize yield was observed under the application of terbuthylazine + mesotrione in post-emergence (14.223 t/ha). This combination led to the highest weed control costs (35.60 EUR/ha) in 2018, while in 2017, the yield was 12.829 t/ha, with a control cost of 33.99 EUR/ha.

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Climate Change Influence on Herbicide Efficacy and Weed Management

Cited by 8 publications

References 88 publications

Assessment of peculiarities of weed formation in oilseed radish agrophytocoenosis using different technological models

Assessment of peculiarities of weed formation in oilseed radish agrophytocoenosis using different technological models

Impact of Futuristic Climate Variables on Weed Biology and Herbicidal Efficacy: A Review

Rationalizing Herbicide Use in Maize within the Framework of Climatic Change and Extreme Hydrometeorological Phenomena

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