Optimizing activity of herbicides at reduced rate on Emex spinosa campd. with adjuvants

Javaid, Muhammad Mansoor; Tanveer, Asif; Ahmad, Riaz; Yaseen, Muhammad; Khaliq, Abdul

doi:10.1590/s0100-83582012000200023

Cited by 16 publications

(15 citation statements)

References 15 publications

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“…However, the other three herbicides viz., iodosulfuron-methyl sodium, mesosulfuron-methyl + iodosulfuronmethyl sodium and fluroxypyr + tribenuron-methyl + clopyralid could be ranked in the second, third and fourth positions, respectively, in this regard. Our findings are parallel to those of Javaid et al (2012), who recorded 100 % control of Emex spinose with bromoxynil+ MCPA applied at a reduced rate with alkyl ether sulfate sodium salt.…”

Section: Weed Density (M -2 )supporting

confidence: 89%

Alkyl Ether Sulfate Improves Efficacy of Herbicides Against Common Goosefoot and Field Bindweed in Wheat

et al. 2018

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-Tank mixed application of herbicides with adjuvant is required for effective weed management and to reduce herbicide load on agricultural crops. Field studies were conducted to investigate the effect of herbicides at reduced rates with adjuvant on common goosefoot (Chenopodium album) and field bindweed (Convolvulus arvensis) and grain yield of wheat for two consecutive winter seasons. Treatments included post-emergence foliar application of four herbicides viz., fluroxypyr + tribenuron-methyl + clopyralid, mesosulfuron-methyl + iodosulfuron-methyl sodium, bromoxynil + MCPA, iodosulfuron-methyl sodium (pre mixed formulations) at their recommended rates 244.5, 14.2, 444.6, 10 g a.i. ha -1 , respectively and 25% reduced rates with alkyl ether sulfate Na salt at 400 mL ha -1 as adjuvant. A weedy check was kept as control. All the herbicide treatments caused a significant reduction in densities (up to 85% and 89.2%) of C. arvensis and C. album, respectively and total dry weight (12.4-56%), N (3.7-50%), P (25-63.6%) and K (1.4-56.6%) uptakes from weedy check. Better weed control was achieved with 25% lower dose of all herbicides along with adjuvant in comparison with that recorded with their full doses without adjuvant. All herbicide treatments increased the grain yield of wheat ranging from 10.4 6-56.1% over control during both years. Herbicides with adjuvant produced significantly the higher grain yield of wheat than those observed with herbicides alone. Among all herbicide treatments, 75% doses of bromoxynil + MCPA and iodosulfuron-methyl sodium along with alkyl ether sulfate adjuvant were proved to be the best as they gave significantly the higher (4902.3 and 5159.0 kg ha -1 and 4566.5 and 4891.0 kgha -1 ) grain yields of wheat during years 2013-14 and 2014-15, respectively. (244,5; 14,2; 444,6; e 10 g i.a. ha -1 , respectivamente) (até 85% e 89,2%) de C. arvensis e C. album, respectivamente, bem como no peso seco total (12.4-56%), N (3,7-50%), P (25-63,6%) e K (1,4-56,6%) Keywords: adjuvant, grain yield, herbicides, wheat RESUMO -A aplicação de herbicidas em tanque com adjuvante é necessária para o manejo eficaz de plantas daninhas e para a redução da carga de herbicidas em culturas agrícolas. Estudos de campo foram conduzidos para investigar o efeito de herbicidas em doses reduzidas com adjuvante em ansarinha-branca (Chenopodium album) e corriola (Convolvulus arvensis) e no rendimento de grãos de trigo durante duas estações de inverno consecutivas. Os tratamentos incluíram a aplicação foliar em pós-emergência de quatro herbicidas, a saber: fluroxypyr + tribenuronmethyl + clopyralid, mesosulfuron-methyl + iodosulfuron-methyl sodium, bromoxynil + MCPA e iodosulfuron-methyl sodium, com as doses recomendadasTANVEER, A. et al. Alkyl ether sulfate improves efficacy of herbicides against common goosefoot and field bindweed in wheat 2

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Section: Weed Density (M -2 )supporting

confidence: 89%

Alkyl Ether Sulfate Improves Efficacy of Herbicides Against Common Goosefoot and Field Bindweed in Wheat

et al. 2018

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“…The higher weed control with the addition of adjuvant can be attributed to greater absorption of herbicide by weeds (Tahir et al, 2011;Tanveer et al, 2015). These results are supported by Javaid et al (2012), who stated that an effective adjuvant activator enhances the penetration of the herbicide and increase weed control efficacy. More weed control efficiency at narrow row spacing might be due to more weed crop competition, which reduced weed growth and weed biomass, ultimately resulting in more weed control efficiency (Padilha et al, 2016).…”

Section: Weed Control Efficiency Of C Arvensis T Portulacastrum Anmentioning

confidence: 56%

“…Adjuvants increase herbicide efficacy by increasing herbicide retention on the plant surface, more penetration through the cuticle and alteration of the surface tension, pH, thickness and distribution of spray solution (Zadorozhny, 2004). Javaid et al (2012) reported that alkyl ether sulphate increased the efficacy of post-emergence herbicides and reduced herbicide rates without compensating weed control. However, effective weed control at reduced herbicide rates depends upon the type of herbicides being applied, type of adjuvant and characteristic of target weed species (Bunting et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Integrated Role of Row Spacing and Adjuvant to Reduce Herbicide Dose in Maize Under Semi-Arid Conditions

et al. 2018

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as an adjuvant along with weedy check in maize sown at 60 and 75 cm row spacing. Alkyl ether sulphate increased weed control efficacy (13-35%) of the pre-mixed herbicide. Herbicide along with adjuvant provided effective weed control at 60 cm as compared to 75 cm apart sown maize. The most effective control of weeds, and increase in maize grain yield (33-45% as compared to non-treated control) and net income were obtained by the pre-mixed herbicide at 539.4 g a.i. ha -1 (75% of recommended rate) with adjuvant and pre-mixed herbicide at 719.2 g a.i. ha -1 (recommended dose) without adjuvant. The results revealed that the rate of pre-mixed herbicide can be reduced by up to 25% of the recommended field rate by the addition of alkyl ether sulphate as an adjuvant at 60 cm row spacing of maize to increase maize yield and net income.Keywords: alkyl ether sulphate, economic analysis, integrated weed management, narrow row maize, reduced herbicide dose, weed control efficiency. Palavras-chave: alquil éter sulfato, análise econômica, manejo integrado de plantas daninhas, cultura de milho com espaçamento entrelinhas estreito, redução da dose de herbicida, eficiência de controle de plantas daninhas. RESUMO -Nas culturas agrícolas, o espaçamento entrelinhas e os adjuvantes desempenham um papel importante para a redução do custo do herbicida e dos danos ambientais através da redução da dose dos herbicidas aplicados. Foi conduzido um estudo de campo para avaliar o impacto de dois espaçamentos entrelinhas e da redução das doses de herbicidas juntamente com o adjuvante em

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“…However, at lateral stages of parthenium growth, this treatment has less death rate of parthenium. Javaid et al (2012) did a pot trial to assess the potential of two adjuvants to find their adequacy in enhancing the action of five herbicides sprayed at suggested dosage at 2-4 leaf periods and at less dosage (75%) on Emex spinosa at foliage-leaf and 2-4 leaf stage. Expansion of AES as adjuvant to diminished rate of carfentrazone ethyl and fluroxypyr + MCPA updated their reasonability, with biomass decline and 100% death of E. spinosa.…”

Section: Application Of Adjuvantmentioning

confidence: 99%

Improving the Management of Parthenium hysterophorus to Enhance Okra Production through the Application of Chemicals, Adjuvants and Plant Extract Blends in Pakistan

Adnan

Hayyat

Mumtaz

et al. 2021

Caraka Tani J. Sustain. Agric.

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Vegetables are consequently experiencing great yield losses due to weed infestation. Weed management is extremely important for sustainable crop production in all cropping systems. This review paper aimed to provide general information and alternative recommendations for the management of Parthenium hysterophorus weed by chemicals, adjuvants and plant extracts in okra. Different strategies have been used to control parthenium, but no single management solution is sufficient to handle parthenium; hence, different management options need to be combined. Only an integrated approach will achieve effective control over this weed. In areas where parthenium natural enemies are absent, chemical control is an important method of managing this weed. In the control of this plant, the use of chemical herbicides such as chlorimuron ethyl, glyphosate, atrazine, ametryn, bromoxynil and metsulfuron are considered to be efficient. Moreover, various plants have allelopathic potential and attempts have been made to use them in parthenium control. Three allelopathic grasses, namely, Achyranthes aspera, Syzygium cumini and Acacia nilotica are able to minimize the plant growth and inhibit early seedling growth of exotic weed P. hysterophorus. The results recommend that the control of parthenium in okra and other summer vegetables using chemical herbicides with single and combination mode of action is still effective compared to the use of plant extracts. The use of herbicides by adding adjuvants has the potential to minimize the use of excessive herbicides.

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Optimizing activity of herbicides at reduced rate on Emex spinosa campd. with adjuvants

Cited by 16 publications

References 15 publications

Alkyl Ether Sulfate Improves Efficacy of Herbicides Against Common Goosefoot and Field Bindweed in Wheat

Alkyl Ether Sulfate Improves Efficacy of Herbicides Against Common Goosefoot and Field Bindweed in Wheat

Integrated Role of Row Spacing and Adjuvant to Reduce Herbicide Dose in Maize Under Semi-Arid Conditions

Improving the Management of Parthenium hysterophorus to Enhance Okra Production through the Application of Chemicals, Adjuvants and Plant Extract Blends in Pakistan

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