Infektivitas Cendawan Entomopatogen Lecanicillium lecanii Terhadap Mortalitas Hama Penggerek Ubi Jalar Cylas formicarius (Fabricius)

نویسندگان

چکیده

Salah satu faktor yang mempengaruhi dalam penurunan hasil dan kualitas ubi jalar adalah serangan hama Cylas formicarius. Cendawan entomopatogen Lecanicillium lecanii merupakan salah agens hayati dapat digunakan untuk mengendalikan berbagai jenis serangga hama. Penelitian ini bertujuan mengetahui pengaruh aplikasi cendawan entomopotagen L. imago C. Metode metode eksperimen rancangan percobaan Rancangan Acak Lengkap (RAL) tunggal terdiri dari 4 perlakuan 6 kali ulangan : Kontrol (Aquades); 106 konidia/ml; 107 108 konidia/ml. Pengamatan dilakukan setiap hari selama 10 setelah (hsa) dengan menghitung formicarius mati akibat disemprot suspensi sebanyak 1 ml/perlakuan. Hasil penelitian menunjukkan bahwa kerapatan konidia konida/ml memberikan paling efektif terhadap mortalitas sebesar 50% nilai LT50 10,024 hari. Dengan demikian, sebagai layak dikembangkan lebih lanjut.

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

Persistence and Viability of Lecanicillium lecanii in Chinese Agricultural Soil

The entomopathogenic fungus L. lecanii has been developed as biopesticides and used widely for biological control of several insects in agricultural practice. Due to the lack of isolation/count methods for L. lecanii in soil, the persistence of this fungus in soil appears to have attracted no attention. A selective medium and count method for L. lecanii in soil based on cetyl trimethyl ammonium...

متن کامل

Volatiles from Plants Induced by Multiple Aphid Attacks Promote Conidial Performance of Lecanicillium lecanii.

Herbivore-induced plant volatiles (HIPVs) are clues that help predatory insects search for food. The hypothesis that entomopathogenic fungi, which protect plants, benefit from the release of HIPVs was tested. The plant Arabidopsis thaliana was used as the source of HIPVs. The insect herbivore Lipaphis erysimi (Kaltenbach) was used as the inducer, and the fungal pathogen of the aphid Lecanicilli...

متن کامل

Indirect effects of a fungal entomopathogen, Lecanicillium lecanii (Hypocreales: Clavicipitaceae), on a coffee agroecosystem ant community.

Fungal entomopathogens are widely distributed across natural and managed systems, with numerous host species and likely a wide range of community impacts. While the potential for fungal pathogens to provide biological control has been explored in some detail, less is known about their community interactions. Here we investigate the effects of fungal epizootics of the entomopathogen Lecanicilliu...

متن کامل

Ultrastructural Exploration on the Histopathological Change in Phenacoccus fraxinus Infected with Lecanicillium lecanii

The histopathological changes of the second instar nymph of the mealybug Phenacoccus fraxinus infected with Lecanicillium lecanii strain 3.4505 were investigated using light, scanning and transmission electron microscopy. The results demonstrated that L. lecanii 3.4505 could infect P. fraxinus in a short period. At 24 h post-inoculation, the conidia of L. lecanii 3.4505 adhered to the indented ...

متن کامل

Production of Aerial Conidia of Lecanicillium lecanii 41185 by Solid-State Fermentation for Use as a Mycoinsecticide

The production of aerial conidia of Lecanicillium lecanii 41185, a highly virulent fungus, by solid-state fermentation was studied for use as a biocontrol agent against aphids. Among several agro-industrial solid media, steamed polished rice was found to produce the highest amount of aerial conidia. The optimal conditions for aerial conidia production were determined to be a 28.5% moisture cont...

متن کامل

ذخیره در منابع من


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

ژورنال

عنوان ژورنال: Jurnal Agroplasma

سال: 2022

ISSN: ['2303-2944', '2715-033X']

DOI: https://doi.org/10.36987/agroplasma.v9i2.3177