پرسش و پاسخ 

پرسش

  • باسیلوس

    سلام به اعضای محترم سایت فاسکو آیا باکتری بنام باسیلوس پوپیلی وجود دارد اگر وجود دارد یک مشخصات مختصر در اختیارم قرار مدهید؟

    پاسخ به این پرسش

پاسخ های ارسالی برای این پرسش

  • باسیلوس پوپیلی

    با سلام به شما کاربر عزیز بله وجود دارد و اولین بار از سوسک پوپیلا ژاپونیکا در ژاپن جدا شد از این باکتری امروزه در سم پاشی بیولوژیکی چمنها و گیاهان زینتی بکار برده می شود. این باکتری چون اسپورزا است در خاک نیز می تواند بماند.

    ۱۳۹۱ پنج شنبه ۱۶ آذر | 4 | Afsaneh Poursalehi

    1 0
  • Bacillus popilliae

    Bacillus popilliae نام سابق باکتری Paenibacillus popilliae می‌باشد، این باکتری یک باسیل گرم مثبت است و می‌تواند به فرم اسپوری در خاک ساکن شود. white grub نوعی سوسک است که در واقع آفت گیاهان محسوب می‌شود، آلودگی این سوسک با این باکتری باعث ایجاد یک بیماری به نام milky spore و مرگ سوسک می‌شود. از طرفی به دلیل اینکه این باکتری برای حشرات مفید، پرندگان، زنبورها، حیوانات و انسان‌ها مضر نیست، بنابراین به‌راحتی می‌توان از وجود آنها در جهت مبارزة بیولوژیک با این آفت گیاهی استفاده نمود.

    ۱۳۹۱ پنج شنبه ۱۶ آذر | 4 | z_biotech

    2 0
  • Background on Bacillus popilliae

    Background on Bacillus popilliae Bacillus popilliae. is a naturally occurring bacteria that have been mass-produced for the control of Japanese beetle larvae in turf since the 1940s. Bacillus popilliae. cause "milky disease" in the beetle larvae and establish a resident population capable of causing mortality over several seasons if soil conditions are appropriate. Bacillus popilliae was the first insect pathogen to be registered in the U.S. as a microbial control agent. Habitat Bacillus popilliae prefer nutrient rich media containing a yeast extract, an amino acid source, and sugars. When used as a pesticide, it is typically spread onto the turf so it can soak into the underlying soils. Pest controlled The Japanese beetle, Popillia japonica, is the specific insect that Bacillus popilliae controls. Other varieties of Bacillus popilliae have been found to work on other beetles in the family Scarabeaidae, which include the Japanese beetle, the chafers (a pasture pest) and the beneficial dung beetles. How it works A commercial product, such as "milky spore", is applied to the turf using a tube applicator as seen below. After application, the larval grubs ingest the spores of Bacillus popilliae when they ingest the roots of the grass. The bacteria begins to multiply inside the gut of the grub killing it in about 14 days. Once the grubs begins to decompose, billions of new bacteria are released into the soil. The treatment begins working upon application wherever grubs are feeding. Warm climates can achieve complete control in 2-3 years. Colder climates may require 3-5 years. Once the treatment is applied and established in your lawn it can be effective for 15 to 20 years. The cause of death is most likely physiological starvation caused by the growth of bacterial cells in the hemolymph. Effectiveness The treatment is most effective when applied on a region or state wide basis to reduce the overall levels of beetle infestation. It is less effective when used by small landowners, who may control larvae in their own turf only to have their plants eaten by beetles from neighboring properties. Negatives High cost due to the cost of production Slow rate of action, usually taking 2-5 years Very specific host damage, mainly Japanese beetles and a few other Scarabeaidae Need to treat large areas Developing resistance in pest species Positives Very specific host damage, mainly Japanese beetles and a few other Scarabeaidae Complete safety for man and other vertebrates Compatibility with other control agents

    ۱۳۹۱ شنبه ۱۸ آذر | 0 | marand

    0 1