A field study was conducted in date palm orchards Salah al-Din Governorate during the period from 1/10/ 2020 to 30/10/2021 survey species of borers and estimate their population density relative presence period. The results showed diagnosis three belonging Coleoptera family Scarabaeidae, which included Oryctes elegans, Pentodon sp Tanyproctus sp. males females for (53.00, 47.00%), (51.98, 48.02...

The coconut Rhinoceros beetle (Oryctes rhinoceros) is one of the most damaging insect to coconut palms in India. The experimental study on the growth response of 3 instar larvae of Oryctes rhinoceros infesting the coconut trees. The LC50/96 hours value for the larvae of Oryctes rhinoceros were 29.5% for neem cake powder, 24.5% for neem oil and 14.9% for distillery effluent respectively. In the ...

Oryctes rhinoceros nudivirus (OrNV) has been known to cause severe disease in coconut palm rhinoceros beetle, Oryctes rhinoceros, in Southeastern Asia and is used as a biological control to reduce the pest population. Here, we report for the first time that the OrNV may have landed on Korea and may be the major pathogen for diseased larvae of Korean horn beetle, Allomyrina dichotoma. After pero...

The rhinoceros beetle, Oryctes rhinoceros, has emerged as a serious pest of oil palm since the prohibition of burning as a method for maintaining estate hygiene in the 1990s. The abundance of beetles is surprising given that the Malay peninsula was the site of first discovery of the Oryctes virus, which has been used to effect good as a biological control agent in other regions. A survey of adu...

Primary cell cultures from the lymphoid organ of Penaeus monodon were used to investigate in vitro propagation and morphogenesis of white spot syndrome virus (WSSV). Double-strength Leibovitz's L15 supplemented with 20% fetal bovine serum, pH 7.5, with a final osmolarity of 530 +/- 5 mOsm kg-1 was identified as the most suitable culture medium. In this medium, the lymphoid cells remained viable...