Spodoptera litura merupakan hama penting yang dapat menyebabkan kerugian cukup tinggi pada tanaman sawi dan pengendalian dilakukan saat ini menggunakan insektisida berbahaya untuk manusia lingkungan, resistensi hama, resurgensi musnahnya musuh alami, residu pestisida produk pertanian sehingga perlu cara alternatif umbi gadung. Umbi mengandung senyawa aktif bersifat racun bagi serangga hama. Pen...

A field experiment was conducted during the summer 2019 to manage significant pests and diseases of groundnut. Four farming methods were evaluated against Aphis craccivora, Scirtothrips dorsalis, Spodoptera litura andearly leaf spot (Cercospora arachidicola). Among different methods, Natural (NF) (neemastra @ 625 lit/ha) significantly reduced craccivora (3.92 aphids /plant) dorsalis (11.80%) at...

The modified truncated Bt-cry1Ab gene of Bacillus thuringiensis has been used for the development and selection of over expressing transgenic events in a commercially important variety of tomato (Solanum lycopersicum L.) by Agrobacterium-mediated leaf-disc transformation procedure. The integration and inheritance of cry1Ab gene in T0 transgenic plants and their progenies were determined by PCR,...

The indiscriminate use of pesticides for the last 40 years has almost eliminated natural enemies from many crop eco-systems. This scenario has led many countries to consider the potential of biological control as a component of pest management. At present, the world market for microbial pesticides is in excess of US $ 125 million per annum which is still less than 1 percent of the total global ...

The major pests of cabbage, Brassica oleracea var. capitata on Guam are diamondback moth, Plutella xylostella; cabbage webworm, Hellula undalis; cutworm, Spodoptera litura; cabbage cluster caterpillar, Crocidolomia pavonana; the fleahopper, Halticus tibialis and aphids. In the past, Chinese cabbage, Brassica chinensis cv. Tempest for C. pavonana; radish, Raphanus sativus cv. Minowase Summer Cro...

Insect-specific ascoviruses with a circular genome are distributed in the USA, France, Australia and Indonesia. Here, we report the first ascovirus isolation from Spodoptera exigua in Hunan, China. DNA-DNA hybridization to published ascoviruses demonstrated that the new China ascovirus isolate is a variant of Heliothis virescens ascovirus 3a (HvAV-3a), thus named HvAV-3h. We investigated the ph...

Abstract Native Cirsium species play an important role in landscapes across North America. Hadroplontus litura (F.) (formerly Ceutorhynchus ), the stem-mining weevil and biological control agent of Canada thistle [ arvense (L.) Scop.] can complete its life cycle on five native to upper Midwest. Although these are within fundamental host range H. , as determined by host-range tests, we wanted ex...

Electrochemically synthesized dihydrobenzofurans were evaluated for their insect antifeedant activities against phytophagous insects. They were prepared through the coupling reactions of various alkenes with a phenoxy cation generated by oxidation near the cathode in the electrolytic reaction. The insect antifeedant activities of these synthetic dihydrobenzofurans were evaluated in the common c...