Absorption and Translocation of Herbicides with Lipid Compounds

Nalewaja, John D.; Skrzypczak, G.; Gillespie, Greg R.

doi:10.1017/s0043174500067436

Cited by 33 publications

(20 citation statements)

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“…Thus absorption, penetration and translocation of several herbicides were enhanced with adjuvants (Nalewaja et al 1986;Foy 1996). Formulation of a microbial product results in a product that has low cost, long shelf life, ease of application and efficacy.…”

Section: Please Scroll Down For Articlementioning

confidence: 99%

Formulation of phytotoxins fromPhomasp. FGCC#18 for the management ofParthenium hysterophorusL.

Quereshi

Panjwani

Pandey

et al. 2010

Archives Of Phytopathology And Plant Protection

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Biological control is a relatively cheap and most feasible long-term approach for controlling deadly weeds. Parthenium hysterophorus L. is a pernicious weed, imposing deleterious economic effects on humans and livestock. Microbial products thus offer a non-chemical alternative for controlling a noxious, invasive and pernicious weed like Parthenium. Phoma is a well-known phytopathogen responsible for many diseases in plants and is known to produce an array of bioactive extracellular toxic compounds, i.e. agribiologicals. Before application these have to be effectively formulated to enhance their absorption and translocation within the foliar tissues. Adjuvants are formulatives of microbial bioherbicides which ensure maximum herbicidal performance. Research on adjuvant and formulation technology for ecofriendly agrochemicals has advanced rapidly in recent years. Phytotoxins from Phoma sp. FGCC#18 have been tested for their compatibility with different formulants. Phytotoxicity damage was studied by seedling and detached leaf bioassays after different hours post-treatment. Tween 80 at 0.5% was found to be the best formulant, while the combination of Tween 80 and coconut oil at 0.5% exhibited maximum damage to Parthenium seedlings and detached leaves.

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Section: Please Scroll Down For Articlementioning

confidence: 99%

Formulation of phytotoxins fromPhomasp. FGCC#18 for the management ofParthenium hysterophorusL.

Quereshi

Panjwani

Pandey

et al. 2010

Archives Of Phytopathology And Plant Protection

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“…Work by Nalewaja's group (Nalewaja 1986;Nalewaja et al 1990) has shown the biological activation potential of oils and their derivatives with a selection of herbicides. The activity, if not penetration, potential of such formulations can be great.…”

Section: Effect Off Ormulation On Foliar Penetrationmentioning

confidence: 99%

“…The slide was tilted after Manthey and Nalewaja 1992) various times and the wax was then firmly wiped perpendicular to the oil drainage. The herbicides studied were fluazifop-butyl and sethoxydim on oats (Nalewaja et al 1986), diclofop-methyl on maize (Urvoy and Gauvrit 1991), and quizalofop-ethyl on oats and S. glauca (Manthey et al 1992a). A comparison between petroleum oil, sunflower oil, and its methyl ester is shown in Fig.…”

Section: Effect On Waxmentioning

confidence: 99%

“…For instance, no difference in atrazine penetration into maize was detected whether it was applied with petroleum oils of the naphthenic type or of the paraffinic type (Coats and Foy 1974b). It is possible to compare the effectiveness of purified triglycerides, fatty acids, and fatty acid methyl esters with differing numbers of double bonds on the foliar penetration of herbicides (Nalewaja et al 1986;Manthey et al 1992a). Few studies with petroleum oils of well-defined composition have been presented, and they are always rather complex mixtures.…”

Section: Modification Of Oilsmentioning

confidence: 99%

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Interactions Between Adjuvants, Agrochemicals and Target Organisms

Holloway¹,

Rees²,

Stock³

1994

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Softcover reprint ofthe hardcover 1 st edition 1994 The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, fhat such names are exempt from the relevant protective laws and regulations and fherefore free for general use.Product liability: The publishers cannot guarantee the accuracy of any information about dosage and application contained in this book. In every individual case the user must check such information by consulting the relevant literature. Typesetting: Data conversion by Springer-Verlag SPIN: 10471245 21/3130--54321 O-Printed on acid-free paper PrefaceInnovation is derived from a close interaction between basic research and industry. the most recent pharmaceutical successes based on molecular biological research provide examples of this. Innovation demands that researches learn about the developmental process, safety evaluation, production, and economics without downgrading their curiositydriven research skills. This is an arduous task, but rewarding intellectually and perhaps also financially. The main aim of our research proactiveness and this workshop is to encourage contact between such curiosity-driven researchers from academia and product-driven research and development. The result is, hopefully, an identification of frontier science and the means for its application in the field of the interaction between adjuvants, agrochemicals, and target organisms.On reflection, there are many schools of thought on how to pursue the optimization of an agrochemical formulation, or to find the best adjuvant or adjuvant mixture to maximize the biological potential of an agrochemical against the specified target. There are, however, two extremes which must be reconciled. The first is the empirical approach. This is a costly method, formerly very much "spray" and "pray" or "spray" and "weigh", which in the past has predominated within the industry. The other is the purely rational approach, where the formulation or adjuvant is designed using only theoretical considerations, thereby integrating the findings of basic research.Experience in the development of suitable formulations or adjuvants, a multidimensional problem, cannot easily be bought. It is hard task and a skill-requiring process which necessitates a critical ey coupled with a creditable knowledge of the biological processes involved VI Preface Fig. 1. The participants of the workshopin addition to the physicochemical field. The "spray" and "weigh" image of the industry, we hope, has long been buried, and we are sure we will not let ourselves be fooled that once we know a compound's physical and chemical properties, we know exactly which adjuvant we require to maximize performance. Somewhere in between the extreme approaches there is a cost-effective, efficient compromise. The objective of the workshop was to establish the working practice across the disciplines and various fields of study in order to find that compromise.Session of the workshop, dealt wit...

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“…In recent years, several reports have shown that seed oil additives can increase the efficacy of post-emergence herWcides, particularly graminicides De Ruiter etal., 1987;Parmentier, 1987;Gillespie et al, 1988;McWhorter & Barrentine, 1988;Schott et al, 1990Schott et al, , 1991. Methylated esters obtained from seed oils usually perform better than the parent oil and are comparable to petroleum oils, in some instances better Nalewaja et al, 1986;Manthey et al, 1989;Schott et al, 1990Schott et al, , 1991.…”

Section: Introductionmentioning

confidence: 99%

Seed oils as additives: penetration of triolein, methyloleate and diclofop‐methyl in maize leaves

1992

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Summary: Résumé: Zusammenfassung Methyl ester derivatives of seed oils have a greater effect on graminicide efficacy than the parent oils. To explain this difference, we investigated the penetration of the radiolabelled oils, triolein (TRI) and methyl oleate (MEO), in maize leaves, and their influence on diclofop‐methyl penetration. Over a period of 3 h 30% of applied TRI penetrated maize leaves, but no further penetration was observed. In contrast, MEO entry proceeded regularly to 72% over a period of 27 h. The amount of oil found in epicuticular wax (chloroform wash) was generally less than 4% of the recovered label, and was even lower (<1%) in ‘glossy 1’ hybrids which have no crystalline epicuticular wax. In the latter plants, TRI and MEO penetration over 27 h was only 1 and 27%, respectively. Addition of an emulsifier did not modify the behaviour of the oils. The initial rate of penetration of radiolabelled diclofop‐methyl into maize leaves was dramatically increased by both oils (7‐5‐fold by TRI, 11.8‐fold by MEO). The penetration of diclofop‐methyl in the leaves of ‘glossy’ hybrids was low (4% over 27 h), and it was not affected either by TRI or by the emulsifier, whereas MEO increased it sevenfold. This preliminary study shows the differences in behaviour and effect that may exist between seed oils and their methyl ester derivatives, and it emphasizes the importance of cuticular structure with regard to oil action. Utilization des huiles végétales comme adjuvants: pénétration dans les feuilles de maïs de la trioleïne, du méthyloleate et du diclofop‐méthyl Les dérivés méthylestérifiés d'huiles végétales ont un effet plus important sur l'efficacité des herbicides antigraminées que les huiles d'origine. Pour expliquer cette différence, nous avons étudié la pénétration de deux huiles radioactives, la trioléine (TRI) et le méihyloléate (MEO) dans les feuilles de maïs, ainsi que leur effet sur la pénétration du diclofop‐méthyl. En 3 h, 30% de TRI appliquée pénétrait les feuilles de maïs mais aucune pénétration ultérieure n'était observée. Au contraire, la pénétration de MEO se poursuivait régulièrement jusqu'à 72% en 27 h. La quantité d'huile trouvée dans les cires épicuticulaires (lavage au chloroforme) était généralement inférieure à 4% de la radioactivité récupérée, et inférieure à 1% chez les maïs ‘glossy 1’ qui n'ont pas de cires épicuticulaires cristallines. Dans ces dernières plantes, la pénétration de TRI et MEO était, respectivement, de seulement 1 et 27% en 27 h. L'addition d'un émulgateur ne modifiait pas le comportement des huiles. La vitesse initiale de pénétration du diclofop‐méthyl radioactif dans les feuilles de mais était augmentée de manière importante par les deux huiles (TRI: × 7,5; MEO: × 11,8). La pénétration du diclofopméthyl dans les feuilles des hybrides ‘glossy’était faible (4% en 27 h). Elle n'était affectée ni par TRI ni par l'émulgateur alors que MEO l'augmentait (×7). Cette étude préliminaire montre les différences de comportement et d'effet qui pourraient exister entre huiles vég...

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Absorption and Translocation of Herbicides with Lipid Compounds

Cited by 33 publications

References 2 publications

Formulation of phytotoxins fromPhomasp. FGCC#18 for the management ofParthenium hysterophorusL.

Formulation of phytotoxins fromPhomasp. FGCC#18 for the management ofParthenium hysterophorusL.

Interactions Between Adjuvants, Agrochemicals and Target Organisms

Seed oils as additives: penetration of triolein, methyloleate and diclofop‐methyl in maize leaves

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