Effect of Adjuvants on Bentazon Efficacy in Green Pea (<i>Pisum sativum</i>)

Al‐Khatib, Kassim; Kadir, Sorkel; Libbey, Carl

doi:10.1017/s0890037x00023630

Cited by 8 publications

(7 citation statements)

References 7 publications

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“…Some of these reports also recorded the effects of herbicides on root or shoot growth, which were generally adversely affected. Al-Khatib et al (1995) also reported injury to peas and a reduction in yield with bentazone applied at 1.68 kg/ha.…”

Section: Effects Of Herbicidesmentioning

confidence: 91%

The multifunctionality of grasslands in rural development in a European context

Nagy¹

2002

AAgr

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Experiments involving the intercropping of faba bean with each of lupin, fenugreek and Egyptian clover as well as growing faba bean alone were carried out at Assiut University on a farm naturally infested with Orobanche in two seasons. The major objective of the study was to investigate the effect of different intercropping combinations with faba bean on the infestation with Orobanche.The results obtained revealed that intercropping faba bean with each of lupin, fenugreek and Egyptian clover markedly reduced the Orobanche crenata Forsk. infestation of faba bean. The number of branches, the height of the first pod, the number of pods, the seed yield and the number and dry weight of Orobanche spikes were significantly affected by the intercropping treatments, but these had no significant influence on plant height, straw yield or 100-seed weight. Intercropping faba bean with each of lupin, fenugreek and Egyptian clover increased the faba bean seed yield, consequently the economic return was also increased.

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Section: Effects Of Herbicidesmentioning

confidence: 91%

The multifunctionality of grasslands in rural development in a European context

Nagy¹

2002

AAgr

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“…On [10] that bentazon applied at low-rate (0.84 kg /ha) has provided at least 65% control of common cocklebur (Xanthium strumarium), regardless of additives used. Also, AL-khatib et al [18] reported that weed control with bentazon applied at 0.56 kg/ha with any adjuvant was equal to weed control with bentazon applied alone at 1.12 kg /ha. Previous studies analysing both surfactant and agrochemical uptake showed that there may be co-penetration, and pre-penetration by surfactant, in relation to the agrochemical.…”

Section: Physicochemical Properties Of Tank Mixture Solutionsmentioning

confidence: 99%

Tank mixture additives approach to improve efficiency of bentazon against broadleaf weeds in peas

Balah

Hanafi

Ghani

2012

Journal of Environmental Science and Health, Part B

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Efficiency of different tank-mixed additives with bentazon at half rate was investigated on (Malva parviflora) and other broad leaf weeds compared with bentazon at the full recommended rate without additives in peas in open field. All the tested additives enhanced the efficiency of bentazon at the half rate. Nonyl phenol and toximol S proved to be the most effective additives in comparison with the full rate treatment. The tested treatments did not show any significant effect on chlorophyll content and soil microorganisms. Bentazon residues were determined in certain treatments to investigate the effect of the tested additives on bentazon deposition. Samples were extracted using QuEChERS method and residues were determined using LC-MS/MS. Residues after 24 hours in the half rate treatment reached 4 times lower than the Maximum Residues Limit (MRL) (0.11 mg kg(-1)), compared to the full rate treatment (0.51 mg kg(-1)), that was slightly above the MRL.

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“…The effectiveness of Btz is often improved by adding adjuvants that increase herbicide activity but also its retention and adsorption; therefore, adjuvants increase phytotoxicity of Btz on many weeds and enhance crop damage [16] .…”

Section: Introductionmentioning

confidence: 99%

Cyclodextrin Inclusion Complex to Improve Physicochemical Properties of Herbicide Bentazon: Exploring Better Formulations

et al. 2012

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The knowledge of the host-guest complexes using cyclodextrins (CDs) has prompted an increase in the development of new formulations. The capacity of these organic host structures of including guest within their hydrophobic cavities, improves physicochemical properties of the guest. In the case of pesticides, several inclusion complexes with cyclodextrins have been reported. However, in order to explore rationally new pesticide formulations, it is essential to know the effect of cyclodextrins on the properties of guest molecules.In this study, the inclusion complexes of bentazon (Btz) with native βCD and two derivatives, 2-hydroxypropyl-β-cyclodextrin (HPCD) and sulfobutylether-β-cyclodextrin (SBECD), were prepared by two methods: kneading and freeze-drying, and their characterization was investigated with different analytical techniques including Fourier transform infrared spectroscopy (FT-IR), differential thermal analysis (DTA), X-ray diffractometry (XRD) and differential pulse voltammetry (DPV). All these approaches indicate that Btz forms inclusion complexes with CDs in solution and in solid state, with a stoichiometry of 1∶1, although some of them are obtained in mixtures with free Btz. The calculated association constant of the Btz/HPCD complex by DPV was 244±19 M−1 being an intermediate value compared with those obtained with βCD and SBECD. The use of CDs significantly increases Btz photostability, and depending on the CDs, decreases the surface tension. The results indicated that bentazon forms inclusion complexes with CDs showing improved physicochemical properties compared to free bentazon indicating that CDs may serve as excipient in herbicide formulations.

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Effect of Adjuvants on Bentazon Efficacy in Green Pea (Pisum sativum)

Cited by 8 publications

References 7 publications

The multifunctionality of grasslands in rural development in a European context

The multifunctionality of grasslands in rural development in a European context

Tank mixture additives approach to improve efficiency of bentazon against broadleaf weeds in peas

Cyclodextrin Inclusion Complex to Improve Physicochemical Properties of Herbicide Bentazon: Exploring Better Formulations

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