Isolation and Characterization of Pathogenic Bacteria from Diseased Silkworm (Bombyx mori L.) and Antibacterial Activities of Different Plant Extracts
About 34 to 40 percent of total crop in a year has been reported to be loss due to diseases because of the occurrence of four major diseases namely pebrine (Protozoan disease), flacherie (bacterial disease), grasserie (Viral disease) and muscardine (Fungal disease). Flacherie is known to be caused the assembly of various pathogenic bacteria in silkworms and are commonly known as bacterial flacherie. Continue reading Pathogenic Bacteria from Diseased Silkworm (Bombyx mori L.)
Diatomaceous Earth-Induced Changes in the Life-History Traits in Musca domestica L. (Diptera: Muscidae)
The present investigation was split into the following five experiments:
Experiment One: Using doses of 0.0, 0.2, 0.4, 0.6 and 0.8 mg/l00ml diatomaceous earth (DE) in the larval food medium, a mean LC50 of 0.66mg/l00ml was determined for the 31instar larvae of M domestica. Experiment Two: Here the time-course mortalities of the 3rd-instar larvae were evaluated, wh
Continue reading Can Diatomaceous Earth Change Life-History Traits in Musca domestica L.
Histopathological Effects of Carbofuran on Renal and Hepatic Tissues of Albino Mice (Mus musculus).
Wide spread use of pesticide in public health programme and agriculture has caused a severe environmental pollution and potential health hazards. Among all the pesticides used, carbamates are most common. The carbofuran (2, 3-dihydro-2,2-dimethyl-7- benzofuranyl) is an important organocarbamate pesticide. It is a broad spectrum, non- cumulative carbamate insecticide; a cholinesterase inhibitor with contact and stomach action and highly toxic to mammals.
Continue reading Histopathological Effects of Albino Mice (Mus musculus).
BIODIVERSITY, ABUNDANCE OF PLANKTON AND WATER QUALITY VARIABLES OF RAMSHAGAR IN DINAJPUR
Ramshagar dighi is the largest man made pond (Dighi, Bengali meaning) sited at Tajpur village in Dinajpur. It bears some exceptional historical events of national heritage. The water area of Ramshagar dighi measures 1039m along north-south and 192.6m along east-west. Approximate depth of the tank is 9.10m Ramshagar dighi is surrounded by l0.75m high wall.
Continue reading Population dynamics of Ramshagor of Dinajpur