BERLIN (Reuters) - Use of glyphoste-based weed-killers should be halted during the current legislative period which ends in three years, a spokesman for the German environment ministry said on Mond

Brazil-based agrochemical companies plan to appeal a ruling suspending the use of best-selling weed killer glyphosate in one of the world's largest grain producing nations, an industry spokeswoman

This article presents a robust contact-type weed eradicator based on position sensing, digital image processing and microcontroller for weed control in row crops. The imaging system determines the weed density between the crop rows using an image analyser developed in Visual Studio Open computer vision platform for use under varying illumination levels. Graphic user interface was developed for parametric adjustments of the image analyser.

Original Source

The management of terrestrial weed is of great concern for the scientific community as these weeds cause adverse effect in different ecosystems like forest, agriculture and urban. The widespread of these weeds by their adaptive capability and morphological advancement is difficult to control. Parthenium hysterophorous, Lantana camara, Saccharum spontaneum, Ageratum conyzoides are the weeds that spread all over the world. There are various management practices employed for the control of this weeds.

Timing of weed emergence and seed persistence in the soil influence the ability to implement timely and effective control practices. Emergence patterns and seed persistence of kochia populations were monitored in 2010 and 2011 at sites in Kansas, Colorado, Wyoming, Nebraska, and South Dakota. Weekly observations of emergence were initiated in March and continued until no new emergence occurred. Seed was harvested from each site, placed into 100-seed mesh packets, and buried at depths of 0, 2.5, and 10 cm in fall of 2010 and 2011. Packets were exhumed at 6-mo intervals over 2 yr.

An advanced weed-killing chemical has twice come back to haunt Arkansas farmer John Weiss.

Wetlands seem to be more vulnerable to invasions compared to terrestrial ecosystems. The alien invasive weed, Ludwigia peruviana, invading the wetlands of the Dhansiri catchment and eastern part of Kopili in Assam has threatened the resident biodiversity and has also posed possibilities of spreading to other wetlands of North East India. The present study was conducted to measure the impact of the weed on the biodiversity of this region, to find out the causes for increasing invasiveness and to suggest a suitable management strategy.

A team from the International Institute of Tropical Agriculture managed Cassava Weed Management Project has published a revised version of the Handbook of West African Weeds.

Researchers working under the International Institute of Tropical Agriculture led Cassava Weed Management Project (IITA-CWMP) will this week share findings on how to tackle weeds in cassava farming

Ancient woodland is under threat from invasive rhododendron, experts have warned as they revealed the “aggressive” weed now covers woodland the size of 150,000 football pitches.

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