Clopyralid

Download Clopyralid PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Clopyralid book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page

Review On Clopyralid And Its Persistence Study

DOWNLOAD
Author : Anand Singh
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2012-02

Review On Clopyralid And Its Persistence Study written by Anand Singh and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-02 with categories.

Clopyralid is a selective, auxins type herbicide of pyridine carboxylic acid group which is used in the cultivation of vegetables for the control of broad leaf weeds of the family polygonaceae, compositae, legmuminosae and umbelliferae in sugarbeet, fodder beet, oilseed rape, brassica, onions, leeks strawberries, flax and grassland. About 8,91,662 lbs active ingredient of clopyralid was used in the US. Clopyralid can be consider as a safe herbicide for mammals as its LD50 for rat is 3738 (for male) and 2675 mg/kg (for female) but it could be harmful for the aquatic life for example rainbow trout and bluegill sunfish have the LD50 values 103.5 and 125.4 mg/kg repectively. study pertaining to its persistence behavior in soil is essential to get an idea about its extent of residue thereby predicting the risk of residual toxicity and ground water pollution. The work presented in this monograph have been submitted as a thesis for partial fulfillment of the M.Sc. degree program to G. B. Pant University of Agriculture & Technology, Pantnagar 263 145, (Uttarakhand), India under the guidance of Dr. N. K. Sand, Dr. Sudha Kanaujia, Dr. Anjana Srivastava and Dr. Shishir Tandon.

Clopyralid

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2016

Clopyralid written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.

Under the authority of the Pest Control Products Act, Health Canada's Pest Management Regulatory Agency (PMRA) has concluded that the addition of a new use on turnips to the product label of LontrelTM 360 Herbicide, containing technical grade clopyralid, is acceptable. The specific uses approved in Canada are detailed on the label of LontrelTM 360 Herbicide, Pest Control Products Act Registration Number 23545. The evaluation of this clopyralid application indicated that the end-use product has value and the human health and environmental risks associated with the new uses are acceptable.

Persistence And Accumulation Of Clopyralid 3 6 Dichloropicolinic Acid In Soil

DOWNLOAD
Author : Karin Tanphiphat
language : en
Publisher:
Release Date : 1986

Persistence And Accumulation Of Clopyralid 3 6 Dichloropicolinic Acid In Soil written by Karin Tanphiphat and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Soils categories.

Field studies were started at Hyslop Farm, Corvallis, Oregon in 1984 to determine the soil persistence of the herbicide clopyralid (3,6-dichloropicolinic acid) under cropping situations. The herbicide was sprayed on bare soil at the proposed use rate of 0.14 kg/ha in the spring and on the same plots at a high rate of 0.56 kg/ha in the summer. Winter wheat (Triticum aestivum L. 'Stephen') was seeded in the same fall. Treated plots did not yield differently than untreated plots. Safflower (Carthamus tinctorius L.), a crop known to be sensitive to clopyralid, was planted in the spring of 1985 to the area treated with clopyralid in 1984. Safflower grew normally and fresh weights were not reduced. Greenhouse bioassays were conducted on soil samples collected from two separate sets of plots treated with clopyralid in the fall of 1984 or the spring of 1985. The application rates were 0.56 and 1.12 kg/ha. Lentil (Lentilla lens L.), safflower, and peas (Pisum sativum L.) were used as indicator plants. From the plots sprayed in the fall, soil samples were collected at 0, 14, 34, 54, 114, 220, and 287 days after treatment. Clopyralid disappeared faster in the second depth (10 to 20 cm depth) than in the first depth (0 to 10 cm depth). No herbicide was detected in the second depth 220 days after treatment but in the first depth there was sufficient herbicide to cause growth reduction in all of the indicator species. In soil sampled 287 days after applying either 0.56 or 1.12 kg/ha, enough herbicide remained in the first depth to produce slight symptoms on lentil. No herbicide injury was observed on peas or safflower. From plots sprayed in the spring, soil samples were collected 0, 14, 28, and 56 days after treatment. In the spring, clopyralid dissipated more slowly than in the fall, based on the observation that the indicator plants were more severely injured when grown in soil samples collected following the spring application than they were following the fall application. Adding 2,4-D did not affect clopyralid persistence. Clopyralid and XRM-3785 (clopyralid + 2,4-dichlorophenoxy acetic acid) at the same dosage of clopyralid disappeared from the soil at approximately the same time.