Übersetzung für "Grass weeds" in Deutsch

Grass and weeds grew rank over the whole cemetery.

I wanted to mow the grass, burn the weeds, prune the trees.

Stay away from high grass and weeds to avoid chigger bites.

Weeds and grass weeds compete with maize for water, nutrients and light.

The grass, bitter weeds blossom here in May...".

Such suspensions are used for preemergent control of weeds and grass-like weeds in crops of cultivated plants.

The summit of the motte is flat, covered with grass and weeds with no visible footings.

Various economically important broad-leaf weeds and grass weeds had grown under natural field conditions (field trials).

Such suspensions are used for controlling weeds and grass-like weeds in crops of cultivated plants by the post-emergent method.

Dead grass, weeds and moss can form a "thatch layer" over time.

Ordinance 2515 will limit the length of grass, weeds, or brush to six inches.

Many combustion engine driven machines are dual purpose machines that can be used for cutting grass and weeds or for cutting brush and small trees, depending on the cutting attachment fitted.

The broad spectrum of species from the most varied families that can be controlled also means that the agents are suitable for destroying unwanted broadleaves and grass weeds in woody trees and bushes as well as sugar cane.

Accordingly, it was the object of the present invention to provide novel esters from the series of the halogenated 4-(pyridyloxy)-a-phenoxy-propionic acids and thiopropionic acids, which are superior to known compounds of similar structure in respect of their herbicidal action against grass-like weeds which are difficult to control, and are better tolerated by important cultivated plants such as wheat, barley and rice, and thus represent an enrichment of the art.

The broad range of combatable species from the most widely varying botanical families also makes the agents suitable for removing unwanted grass and weeds from tree and bush plantations and sugarcane.

The active substances according to the invention, of the formula I, and the herbicidal agents in which they are present as active ingredients, may in particular be used for selectively controlling grass-like weeds, which are difficult to control, in cultivated plant crops, including monocotyledonous cultivated plants, for example wheat and other varieties of cereals.

The novel 3-phenoxy-a-phenylthioalkanecarboxylic acid derivatives of the formula I and the compositions which contain them have an excellent selective herbicidal action against grass-like weeds in different crops of cultivated plants, and in addition they exert a plant growth-regulating action.

The invention also relates to herbicidal compositions which contain the novel active substance of the formula I, and to a pre-emergence, especially post-emergence, method of controlling weeds, in particular monocotyledonous grass-like weeds.

Surprisingly, the active substances according to the invention are distinguished, compared to the known saturated esters and thiol-esters of the pyridyloxy-a-phenoxy-propionic acid series, by distinctly better toleration by cultivated plants, especially wheat, barley and rice (that is to say by better selectivity), whilst they are distinguished compared to known aromatic unsaturated esters and thiol-esters by being more active against grass-like weeds, especially Avena fatua (species of wild oats).

In this test, compounds 1, 2 and 3 are most effective against the broad-leafed and also most grass-like weeds, whilst cultivated plants such as maize, and also to some extent wheat, millet, rice, soybeans and cotton, are not damaged or suffer only minor damage.

In this test too, compounds 1, 2 and 3 are most effective against the broad-leafed and most grass-like weeds, whilst maize, barley, millet, rice, as well as cotton and soybeans are not damaged or are damaged only at higher rates of application.

The compounds of the formula I (hereinafter also called "active substances") have herbicidal properties and are suitable for controlling weeds including grass weeds, for example, inter alia, Agropyron repens, Alopecurus myosuroides, Avena fatua, Bromus inermis, Echinochloa crus-galli, Poa annua, Sorghum halepense, Abutilon theophrasti, Amaranthus retroflexus, Cassia obtusifolia, Chenopodium album, Galium aparine, Matricaria chamomilla, Sinapis arvensis and Stellaria media in various crops, for example, inter alia, rice crops, in particular paddy rice, wheat, maize, soya, oilseed rape, sunflower and cotton.

These effects allow the application rate to be reduced, a broad spectrum of broad-leaf weeds and grass weeds to be controlled, a more rapid action, a prolonged long-term action, a complete control of the harmful plants with only one, or few, applications, and a widening of the potential application period when the active compounds are combined.

The agents according to the invention also have a good herbicidal post-emergence action against a broad range of economically important grass weeds and dicotyledon weeds (Table 4).