Page 1 of 1 - About 5 Essays
  • What Is Bifenthrin Concentration Prediction?

    the control of ants. Although application amounts reported by professional applicators are not 100 percent correct and that of homeowners are not reported, data from the DPR PUR database indicates that bifenthrin is heavily applied by applicators in urban Sacramento. Additionally, these pyrethroids have a longer half-life than some of the other insecticides, so they may remain in sediments for longer periods of time. Generally, bifenthrin has an aerobic soil half-life of 96 days. In comparison, other pyrethroids have half-lives that range from 12 days for cyfluthrin to 40 days for permethrin. Bifenthrin is particularly stable in anaerobic environments, with a half-life of over 400 days (Laskowski, 2002). In a rare study that evaluated half-life of pyrethroids, bifenthrin had aerobic half-life ranging from 428 to 1950 days and an anaerobic half-life of 251–498 days (Gan et al., 2005). This study was triggered by lack of observed bifenthrin data in study area at FOL002 within the lower American River. Investigation…

    Words: 1464 - Pages: 6
  • Strawberry Blossom Research Paper

    Chemical control has to be done before blooming or when pollinators are not active.Treating early spring, and sometimes combine it with late treatment was shown to effectively control the strawberry blossom weevil (Tönnberg, V.,2014). Pyrethroids are an effective insecticide, but it also affect beneficial insects such as natural enemies or pollinators. If used they need to spray before flowering and after harvest. Mis-used of the product can lead to increased infestation of spider mites. Recent…

    Words: 1151 - Pages: 5
  • Permethrin Research Paper

    Repellent-Treated Clothing Permethrin is the agent of choice for these products. This is a man-made synthetic pyrethroid, a class of insecticides derived from Chrysanthemum cinerariifolium. Arthropod toxicity is exerted by sodium channel antagonism with, interestingly, strength of effect inversely correlated with temperature. Cold-blooded animals, in general, and fish, in particular, are unusually sensitive to these effects, while humans exposure is generally considered safe. Exposed mosquitoes…

    Words: 1418 - Pages: 6
  • Eldana Saccharina Walker Case Study

    plant-insect interaction (McFarlane et al., 2009). A number of researchers have expressed the importance of integrated approach for the effective control of this pest (Conlong and Rutherford, 2009; Kvedaras et al., 2014; Cockburn et al., 2013; Dentinger et al., 2013). Studies on the pest ecology have revealed the limitation of biological, chemical and plant based control of this stem borer due to the fact that the adult spends most of its short life mating and laying eggs on hidden areas of the…

    Words: 950 - Pages: 4
  • Neem And Barbaka Case Study

    that attack bacteria and eat them. Although many attempts are made but In spite of all the efforts listed above biological control for many maladies and dieases of Apis mellifera remains only a dream at the moment.[7] Chemical Control: A commercially available wasp and hornet spray for killing the bees and wasps can provide fast knockdown and this can be used from a distanc but it provides no residual control. A number of low toxicity and vary effective pesticide options are available for…

    Words: 1528 - Pages: 7
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