Fipronil is one of the newest names on the market for pest control, effective in the elimination of ants, roaches, termites, and other common pests. In total, we detected 128 colonies present on the eight properties at the time of treatment, including those infesting the structures. N. A. Fei Five houses received a full treatment following the instructions for postconstruction conventional termite treatment in which a continuous barrier of termiticide is applied to the interior and exterior perimeters, whereas three houses received the postconstruction exterior/localized interior structural termite treatment receiving a continuous exterior barrier with interior treatment around areas showing termite activity (Table 1). Fipronil was first registered for use in the United States in 1996. It is one of the best products in this category. While older products available in the market are typically repellent to termites and other insects, FIPFORCE Aqua containing fipronil is a totally unique molecule in that its mode of action is non … F. The maximal distance from the house and therefore the treatment zone in these four colonies ranged from 6 to 13.5 m. As noted, all active workers from these colonies disappeared by 90 d after treatment, indicating that at least in some cases, field applications of fipronil can affect foragers located >10 m from the treatment zone. Kamble In a recent study, we used a combination of microsatellite genotyping and intensive monitoring to assess colony-level effects of imidacloprid treatment in the field over a 2-yr period in central North Carolina (Parman and Vargo 2010). The 90-d time period was represented by the sample collected closest to this data (range, 82–126 d after treatment). . During the period between 90 d after treatment and the 1-yr mark, monitors were checked at least six times and natural areas at least twice. This house received a full interior and exterior perimeter treatment. Oxford University Press is a department of the University of Oxford. In our view, the most likely explanation for our failure to redetect any treated colonies during the intensive 3-yr monitoring period is that they were eliminated, although we cannot exclude the possibility that some of the treated colonies persisted after treatment with greatly reduced population sizes and were not encountered again. J. We installed an average of 68.6 ± 25.2 monitors on each property (range, 41–121). Over the past dozen years or so, nonrepellent liquid insecticides with delayed toxicity have come to dominate the postconstruction termiticide market in most regions of the United States due to their high efficacy and low rates of treatment failures (Anonymous 2002, Potter 2004). We extracted DNA from whole termite bodies by using the Gentra PureGene kit (Gentra Systems, Inc., Minneapolis, MN) or the DNeasy kit (QIAGEN, Valencia, CA). After treatment, the monitors were checked monthly for 3 mo and then quarterly for 3 yr to track the fate of colonies. Manzoor All of the colonies tracked for at least 1 yr after baiting—34 R. flavipes colonies and one R. virginicus colony—disappeared from the study and were presumed to be eliminated. None of the 11 treated colonies was found on or after the 90-d posttreatment sampling date and were presumed to be eliminated. B. M. In brief, monitors were 30 cm long with two pieces of 20-cm-long pine wood strips inside. THE MOST POPULAR. 2003, Shelton and Grace 2003, Rust and Saran 2006, Tsunoda 2006, Haagsma and Rust 2007, Saran and Rust 2007, Spomer et al. Traditionally, the goal of such a treatment is to create a continuous chemical barrier that excludes termites in the ground from entering a building. Ripa This is in contrast to 60% of the untreated colonies that were detected again during the same period, and many of these were found on multiple occasions. Fipronil is used to control ants, beetles, cockroaches, fleas, ticks, termites, mole crickets, thrips, rootworms, weevils, and other insects. In a previous study performed in Raleigh, NC, using similar methods to those applied here, we (Vargo 2003) found evidence for colony elimination and reduced termite activity in an apartment complex treated with baits containing hexaflumuron. 1993). It contains 9.1% of fipronil which turns helpful for effective … In brief, the genotypes of the group of individuals comprising a sample were compared with all other groups collected from the same property by means of an exact test of genotypic differentiation by using GenePop on the Web (Raymond and Rousset 1995). The largest of the infesting colonies had an estimated foraging area of 365 m2. The idea is that termites … Sheikh The houses used in the current study averaged (± SD) 378.9 ± 253.7 m2 (range, 182–789 m2) and were situated on a mean lot size of 2,747 ± 2474 m2 (range, 648-7568 m2). It can be found in dust form that is blown into the tunnel systems of termites, gel for use in bait stations, and also as a liquid state. After the pretreatment period, many samples were analyzed at only two loci (Rf 24-2 and Rf 15-2), shown to be sufficient to determine colony affiliation in the study population (Parman and Vargo 2010), whereas others also were genotyped at Rf 21-1. Characteristics of study properties and pretreatment sampling period. These colonies were occupying mud tubes on the foundation wall, present in structural elements, or both. 2008, Bagnères et al. . (2007) who found a decline in active monitors within 2 m of the treatment zone in R. flavipes. It means that, when a worker touches the powder, it becomes a “carrier”, delivering Termidor termite dust to other termites … J. E. . Spectracide. To determine the effect of the treatment on colonies, we tracked the fate of colonies in each of the three categories (treated, likely treated, and untreated) at four time periods: ≈90 d after treatment, between 90 d and 1 yr after treatment, 1–2 yr after treatment, and 2–3 yr after treatment. Fipronil is the active ingredient in many liquid termite control products---the most common is Termidor. Ahmed These results are consistent with those of Potter and Hillery (2002) who found a lack of R. flavipes activity within several meters of treated structures, and those of Ripa et al. Present in the Raleigh, NC activity by blocking the γ-aminobutyric acid-gated channel. Did not travel > 5 m of the treatment zone in R. flavipes P. 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