The Royal Institution for the Advancement of Learning/mcgill University

University of Vermont and State Agricultural College

Alan K Watson

Alan R Gotlieb

Lee A Wymore

Richard S Winder

Youla S Tsantrizos

Kelvin K Ogilvie

Juan Ormeno-Nunez

Richard D Reeleder

Mohammed H Abu-Dieyeh

Guy Tourigny

William Allan

Method for reducing weed on a weed-infested turfgrass. Said method comprising applying to the turfgrass an effective amount of a herbicidal fungus formulated into particles, most of the particles having a particle size of less than about 1.7 mm of diameter, whereas the herbicidal fungus decreases weed growth and/or increases weed disease development in the weed-infested turfgrass as compared to in the absence thereof; other embodiments of the methods comprising applying to the turfgrass an effective amount of a herbicidal fungus formulated into particles, and covering the weed-infested turfgrass with a ground cover sheet, whereas the herbicidal fungus and the ground cover sheet decrease weed growth and/or increases weed disease development in the weed-infested turfgrass as compared to in the absence thereof. Herbicidal fungus and kits therefore.

Methods of reducing weeds and kits therefor

The present invention is concerned with a novel bioherbicide, and composition thereof for the control of broadleaf weeds in lawns, golf courses, parks, sports fields, other turfed areas, and grass crops such as corn and cereal grains. More specifically, the invention is concerned with a novel isolate Sclerotinia minor IMI 344141, agricultural formulations thereof, and its use as a bioherbicide to control troublesome broadleaf weed species.

Sclerotinia minor for broad spectrum broadleaf weed control

The present invention is concerned with a novel bioherbicide and its use to control fireweed, a troublesome competitor of tree seedlings in reforestation areas. More specifically, the invention is concerned with Colletotrichum dematium ATCC No. 20981, and its use to control fireweed.

Composition for biocontrol of fireweed

Disclosed are compositions and processes for controlling velvetleaf. These compositions comprise synergistic compositions of a Colletotrichum coccodes and chemical herbicides. Use of the synergistic compositions of the subject invention enhances the value of the Colletotrichum coccodes by reducing the amount of herbicide needed and by extending the range of environmental conditions in which the Colletotrichum coccodes will function.

Synergistic herbicidal compositions comprising Colletotrichum coccodes

A method for the biological control of field bindweed using a fungus Phomopsis convolvulus Ormeno. This fungus is a newly described pathogen, which produces foliar lesions in the field bindweed, and is the first fungal pathogen that can control field bindweed present among agricultural crops.

Fungal herbicides

The present invention is concerned with a novel bioherbicide and its use to control Plantago major plantain. More specifically, the invention is concerned with Colletotrichum sp. G1 having the identifying characteristics of culture deposit No. ATCC 20980. The present invention is also concerned with a method for suppressing growth of plants of plantain in turfed and agricultural areas.

Composition for biocontrol of plantain

The invention relates to the isolation, characterization and application of a bioherbicide composition characterized by its phytotoxcity towards the agricultural pest Convolvulus arvensis (field bindweed) and the aquatic weed Lemna paucicostata. The composition consists of a compound of formula I: ##STR1## wherein R.sub.1 is selected from H and OH, and R.sub.2 is selected from --CH.sub.2 OH and --COOH, salts and esters thereof, in association with an agriculturally acceptable carrier. The herbicide of this invention can be used for the control of field binweed and potentially other pest plants.

Herbicidal metabolites of phomopsis convoluvulus for the effective

The present invention is concerned with a novel bioherbicide and its use alone or in compositions, to control the growth of Polygonum convolvulus in agricultural crops such as cereals and other cultivated crops. The present invention is also concerned with a synergistic composition of the novel bioherbicide and a chemical herbicide. Specifically, the new fungus is Phoma sp. ATCC 20982.

Composition for biocontrol of wild buckwheat

There is disclosed a process for controlling undesirable vegetation, espelly velvetleaf by applying Colletotrichum coccodes spores onto the undesirable vegetation or onto the situs of the undesirable vegetation. The composition including the fungus spores in an agricultural carrier as well as the growing of the fungus on solid or liquid media are also disclosed. The spores germinate, infect the undesirable vegetation and result in a pathogenic disease which kills or reduces the growth of this undesirable plant.

Process for controlling undesirable vegetation with Colletotrichum

A method for controlling growth of plants of Chenopodium weed species in agricultural crops. This method comprises applying to the plants or to the locus of the plants an effective amount of the fungus Ascochyta hyalospora to effect and produce typical lesions so as to inhibit the growth of or kill the plants.

Fungal herbicide for control of lamb's quarters and other chenopodium

Disclosed are compositions and processes for controlling undesirable weeds. These compositions comprise synergistic combinations of microbial herbicides and or plant growth regulators. Use of the synergistic compositions of the subject invention enhances the value of the microbial herbicide by reducing the amount of microbial herbicide needed and by extending the range of environmental conditions in which the microbial herbicide will function.

Growing community of inventors

Pincourt, Canada

Alan K Watson