local production of primary powder of bacillus thuringiensis serotype h-14 in iran and determination of its insecticidal properties against culex pipiens and anopheles stephensi

نویسندگان

f fayaz iranian research organization for science and technology

n moasami school of public health and institute of public health research,

m zaiem

m motabar from the microbiology department, faculty of medicine, shahid beheshti university of medical sciences

چکیده

three media formulated from molasses and cornsteep liquor and another media based on the basal medium formulation of ips-82 were assessed for the growth and production of insecticidal properties of b. thuringiensis h-14 .• bacterial powders prepared from the broth cultures were assayed against the larvae of culex pipiens and anopheles stephensi. a standard powder of ips-82 was included in the assay for comparison. good . growth was obtained in all the media and all powders were effective against the two types of mosquito larvae. media with the basal medium formulation of institute pasteur paris were the most effective. molasses iii media was also very favorable. the concentrations required to kill 50% of the larvae of culex pipiens and anopheles stephensi for these two were as follows: - media with the basal medium formulation of institute pasteur paris: 24hr. lc50 and it's 95% confidence limits of culex pipiens and anopheles stephensi = 0.0025,0.0031,0.0018 mg/lit 0.1792,0.2603,0.1508 mg/lit - molasses iii media: 24hr. lc50 and it's 95% confidence limits of culex pipiens and anopheles stephensi = 0.0103,0.0115,0.0092 mg/lit 0.1994,0.2223,0.1769 mg/lit the investigation shows that these media can be used for the production of b.thuringiensis h-14 primary powder.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

LOCAL PRODUCTION OF PRIMARY POWDER OF BACILLUS THURINGIENSIS SEROTYPE H-14 IN IRAN AND DETERMINATION OF ITS INSECTICIDAL PROPERTIES AGAINST CULEX PIPIENS AND ANOPHELES STEPHENSI

Three media formulated from molasses and cornsteep liquor and another media based on the basal medium formulation of IPS-82 were assessed for the growth and production of insecticidal properties of B. thuringiensis H-14 .• Bacterial powders prepared from the broth cultures were assayed against the larvae of Culex pipiens and Anopheles stephensi. A standard powder of IPS-82 was included in ...

متن کامل

the survey of the virtual higher education in iran and the ways of its development and improvement

این پژوهش با هدف "بررسی وضعیت موجود آموزش عالی مجازی در ایران و راههای توسعه و ارتقای آن " و با روش توصیفی-تحلیلی و پیمایشی صورت پذیرفته است. بررسی اسنادو مدارک موجود در زمینه آموزش مجازی نشان داد تعداد دانشجویان و مقاطع تحصیلی و رشته محل های دوره های الکترونیکی چندان مطلوب نبوده و از نظر کیفی نیز وضعیت شاخص خدمات آموزشی اساتید و وضعیت شبکه اینترنت در محیط آموزش مجازی نامطلوب است.

Laboratory Evaluation of Temephos against Anopheles stephensi and Culex pipiens Larvae in Iran

BACKGROUND Malaria is still a health problem in Iran. There are several vector control activities, including Indoor Residual spraying, using insecticide treated nets and larviciding including Temephos. In addition nuisance mosquitos are prevalent in the urban areas. So that evaluation of this species to larvicide will provide a clue for management of vector control activities. METHODS Two mos...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
medical journal of islamic republic of iran

جلد ۲، شماره ۳، صفحات ۲۲۹-۲۳۶

کلمات کلیدی

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023