Of 240 pesticides screened for carcinogenicity by the U.S. Environmental Protection Agency Office of Pesticide Programs, at least 24 (10%) produce thyroid follicular cell tumors in rodents. Thirteen of the thyroid carcinogens also induce liver tumors, mainly in mice, and 9 chemicals produce tumors at other sites. Some mutagenic data are available on all 24 pesticides producing thyroid tumors. M...

The authors examined the relation between 50 widely used agricultural pesticides and lung cancer incidence in the Agricultural Health Study, a prospective cohort study of 57,284 pesticide applicators and 32,333 spouses of farmer applicators with no prior history of lung cancer. Self-administered questionnaires were completed at enrollment (1993-1997). Cancer incidence was determined through pop...

Rainfall samples were collected during the 2003 and 2004 growing seasons at four agricultural locales across the USA in Maryland, Indiana, Nebraska, and California. The samples were analyzed for 21 insecticides, 18 herbicides, three fungicides, and 40 pesticide degradates. Data from all sites combined show that 7 of the 10 most frequently detected pesticides were herbicides, with atrazine (70%)...

Weeds pose a serious threat to wheat productivity. A study was undertaken during the winter season of 2019/20 in experimental field, National Agronomy Research Centre, NARC, Khumaltar assess various doses and application dates for controlling mixed weed flora wheat. The experiment laid out Randomized Complete Block Design with ten treatments replicated thrice net plot size 6 sq. m. included met...

A field experiment was conducted at Anbil Dharmalingam Agricultural College and Research Institute, Tiruchirappalli during Summer, 2021 to evaluate the weed management practices in green gram. The study comprised of eleven with different combination viz., pre emergence (PE) application Diclosulam 17.5 g/ha, Pendimethalin + Imazethapyr 1 kg/ha, post (POE) Fluazifop-p-butyl Fomesafen 313 Acifluor...

A field experiment with the objectives to understand evaluation of mulching effects on weed control in blackgram production under irrigated condition involving two factors viz., (paddy straw mulching, sugarcane trash no mulching) and herbicidal treatments (pendimethalin pre-emergence (PE) @ 1.0 Kg/ha, pendimathalin + Imazethapyr (pre-mix) Valor 32% EC Hand weeding 15 30 days after sowing, weedy...

The field experiment was carried out during the summer season of 2021-2022 to study response different weed management practices on growth and yield black gram. Cyperus sp., Phyllanthus niruri, Trianthema portulacastrum, Amaranthus viridis were dominant weeds. It observed that besides free treatment lowest count, dry weight weeds (3.66 g m-2), index (2.73%) as well highest control efficiency (6...