among several pests of rice as one of the main agricultural products in iran, rice borer, chilo suppressalis is one of the most important pests of this crop. use of pesticides coincided with the occurrence of this pest in the northern region of iran in 1972. at present in order to control this pest, more than 12000 tones of pesticides granules are used annually. ecological effects of pesticides...

the main aim in this study was to collect the experiences of iranian researchers about sulfur mustard (sm) and provide a guideline for the prevention of abuse for this dangerous agent. we searched valid national and international databases using related key words in the two languages. we found 193 articles which had been published in medical journals. among them, 25 articles had some implicatio...

rigidoporus microporus is a major threat to hevea brasiliensis in the rubber growing regions of the world. in vitro synthetic fungicidesensitivity assays of tridemorph, benomyl and bayfidan at seven different concentrations, and in vivo effectiveness of the three fungicides on r. microporus inoculated on rubber seedlings were evaluated. the three chemical fungicides used in this study were effe...

very little information exists in regards to the control options available for potato flea beetles, epitrix spp. this short review covers both chemical and ecological options currently available for control of epitrix spp. synthetic pyrethroids are the weapon of choice for the beetles. however, the impetus in integrated pest management is to do timely (early-season) applications with something ...

abstract in order to evaluate chemical control of bermudagrass (cynodon dactylon (l.) pers.) on mixture turf: (lolium perenne 20%,poa pratensis.20%,festuca arundinacea 20% and festuca rubra commutata 40%), an experiment was conducted during 2006 in tehran, using randomized complete block design with 4 replications and 11 treatments. treatments were diclpfop methyl at 900 and 1080 g a.i. ha-1, f...

in this paper, control of a non-isothermal continuous stirred tank reactor in which two parallel autocatalytic reactions take place has been addressed. the reactor shows chaotic behavior for a certain set of reactor parameters. in order to control the product concentration, an optimal state feedback controller has been designed. since concentrations of reactor species are not measured, an obser...