Soil fipronil

Bobe, A., Coste, C.M., and Cooper. J.-F. Factors influencing the adsorption of fipronil on soils, J. Agric. Food Chem., 45(12) 4861-4865, 1997. 

More recently, the new insecticide, fipronil (Figure 3.11), has been shown to act as a potent blocker of the GABA-regulated chloride channel. It is being used to control both foliar and soil insects9 whilst the avermectins and milbemycins can only be used against foliar pests. 

F. Colliot, K.A. Kukorowski, D. Hawkins and D.A. Roberts, Fipronil a new soil and foliar broad spectrum insecticide , in Brighton Crop Protection Conference - Pests and Diseases, 1992 , British Crop Protection Council, Farnham, UK, 1992, Vol. 1, pp. 29-34. 

Phenylpyrazole insecticides are derivatives of phenylpyrazole. Fipronil is an insecticide with contact and stomach poison activity and is used for control of many soil and foliar... 

Fipronil is a highly active, broad-spectrum insecticide from the phenylpyrazole family and has been on the market since 1993 under different brands. It is widely used for crop protection against major lepidopter-ous and orthopterous pests on a wide range of field and horticultural crops. Fipronil is used against coleopterous larvae in soils and on golf and commercial... 

As a soil treatment, fipronil provides excellent control of a wide range of insect pests in numerous crops, at rates of 50-200 g ha . ... 

Fipronil is used extensively for the control of insect pests in specialty crops. In bananas, good control of banana weevil (Cosmopolites sordidus) and some thrips species can be achieved with fipronil granules applied to the soil at the base of the mat at 0.1 to 0.2 g ha [106]. In vegetable crops, in-furrow applications of both liquid and granular formulations give good control of root maggots and thrips [100, 101]. 

As a liquid termiticide, fipronil provides long-term (>10 years) control of many urban termite species [113]. It is not detected in the soil by termites [114, 115] and its relatively slow action against both subterranean Reticulitermes Jlavus) and Formosan termites Coptotermes formosanus) [116] allows transfer, through several routes, to other members of the colony, leading to colony elimination [117]. 

In turf and ornamentals, fipronil is extremely effective as a granular formulation against larvae of black vine weevils [Otiorhynchus sulcatus) in containerized ornamentals [102] and against many Orthopteran insects, including mole crickets (Scapteriscus spp.) [103] in turf ss. Fipronil gives excellent control of Japanese beetle (PopiMa japonicd) when apphed as a soil drench or injection to field-grown ornamental trees. 

Fipronil, Rhone-Poulence H CF3 1 Foliar, soil, rice... 

Quick Analysis of Fipronil and Its Metabolites in Gauze and Soil Samples... 

This study focuses on the development of a quick method for the extraction and detection of fipronil residues and its main three metabolites in Hawaiian soil (Helemano series) and cotton gauze swipe samples. Pressurized fluid extraction was used for its ease of use and automated state, its reduction in organic solvent consumption, and time saving interests. Gas chromatography-mass spectrometry (GC-MS) in selected ion monitoring mode was enq )loyed for the detection and quantiflcation of the extracts. The extraction method was optimized for the Hawaiian soil for the simultaneous extraction of the four confounds, and was then applied to soil and cotton gauze sanq)les collected from Maui, Hawaii, after a residential spray of fipronil. 

The soil sample labeled 032202-02 was a control which was collected outside of the area of fipronil use, and as such did not show fipronil or the metabolites. It... 

In conculsion, this study offered a quick procedure to determine fipronil and its metabolites in fortified soil sanq>Ies. It was applied successfully to native soil and cotton gauze swipe samples. 

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