Mosquito menace continues to frustrate people in the Rajshahi city in the absence of any drive during the past three months. The Rajshahi City Corporation has not yet taken any initiative to protect the dwellers from mosquito hazards because of fund constraints.

Around 75 percent of total population of Nepal run risk of catching malaria. According to Epidemiology and Disease Control Division, people living in Terai districts, particularly around border region, are in higher risk of malaria. The Division states that while 65 out of total 75 districts of Nepal are in risk of catching malaria; 12 of them run particularly higher risk. They include Jhapa, Ilam, Morang, Mahottari, Dhankuta, Sindhuli, Kavre, Nawalparasi, Bardiya, Dadeldhura, Kanchanpur and Kailali districts.

Leaders of the Left Democratic Front (LDF) yesterday submitted a memorandum to the food adviser urging introduction of countrywide rationing system, extending OMS programme and establishing a state buffer stock of essential items to rein in price spiral. Terming the food situation a very alarming, the LDF said a syndicate of crooked hoarders and businessmen hiked the prices of food grains when the government stock was very inadequate and, thus, bagged a huge benefit.

Berries of a common weed found in India may be effective in fighting mosquitoes that spread dengue fever, a study has found. Synthetic insecticides are increasingly useless in fighting diseasespreading mosquitoes, such as the Stegomyia aegypti that can spread dengue and yellow fever viruses. In the online open-access journal BMC Complementary and Alternative Medicine, Indian scientists described how they used juice and extracts from the Solanum villosum weed and found it was particularly effective in eliminating Stegomyia aegypti larvae.

Bob Crebas still introduces himself as "an old hippy.' But these days it is not recycled washing machines and bric-a-brac that the Dutchman trades in. He has swapped all this for fashion collections made from stinging nettles, designed and produced by his fast-growing business Brennels.nl. Four years ago, Crebas and his business partner were selling second-hand wares through a trading website called Marktplaats.nl when they were approached by eBay, the hugely successful auction website, and made the kind of offer you can't refuse. The American firm bought out Marktplaats.nl for

One of the significant areas in which pesticide residue analysis differs significantly from macro-analysis is that of contamination and interference. Trace amounts of contamination in the final samples used for the determination stage of the

The effect of an organophosphorus (OP) insecticide, methyl parathion on the behaviour of a freshwater air breathing teleost fish, the Climbing perch, Anabas testudineus was studied. The breathing rate, rate of feeding, performance of sustained swimming behaviour against water current and the learning ability were severely curtailed in the fish exposed to 5 mg/L of methyl parathion.

A field experiment conducted at the College of Agriculture, CSKHPKV, Palampur, H.P. during 1999-2000 revealed that the synthetic pyrethroid treatments viz., deltamethrin, cypermethrin and fenvalerate gave significantly less fruit infestation of cucurbit fruit fly, Bactrocera cucurbitae Coq. upto 14 days of spray on summer squash compared to malathion.

This study assesses the role of the blue-green algal species present in the soil in the dissipation of endosulfan and its metabolites in the soil environment. Two Anabaena species, Anabaena sp. PCC 7120 and Anabaena flos-aquae, were used in this study. Anabaena sp.

Oral administration of the insecticide endosulfan (2 mg/kg per day) for 90 days in immature male rats resulted in an inhibition of pole-climbing escape response to electric shock (unconditioned) and avoidance response to buzzer (conditioned). These responses reflect respectively their learning and memory processes.

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