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151. European grass naturalized as a weed in North America; sharp-pointed seeds cause injury when eaten by livestock.

152. Doing this exercise enabled me , in many cases, to immediately weed out the unqualified candidates.

153. My favourite, by far, is the pretty wild cornfield weed, Viola tricolor or heartsease, and the more you pick, the more it flowers.

154. A comparative study on the morphological characteristic of stem, leaf, anthotaxy and involucrum of three kinds of ragweed weed—Ambrosia Artemisiifolia L.

155. Accompanied with herbicide, the quantity of weed seeds in tilth decreased averagely by 75.4% in shallow tillage,(www.Sentencedict.com) and by 27.3% in deep tillage.

156. Mr Clare also stepped out of line, and began privateering about for the weed.

157. The ragweed, Ambrosia artemisiifolia L. , is one of the most hazardous weed species distributed worldwide and causing serious damages to agricultural production and human health.

158. Or they may be algae which colour the sea green, like the carpet of weed in Qingdao that nearly brought the sailing to a halt in last year's Olympic games.

159. It is very difficult to control perennial weed field horsetail ( Equsetum arvense L . ).

160. The genetic change in the sugar beets makes them resist the herbicide or weed killer known as Roundup.

161. So you have to make things rough for them and 4)weed out the 5)weenie trees early on.

162. The results indicated that allelopathic weed Solidago canadensis L. had a significant influence on the microbial flora.

163. Sulfamidyl (thio) carbonyl-1,2,4-triazolineone derivative and preparation method and application as weed killer.

164. The witch weed steals water and nutrient from the roots and attacks the sorghum with a poisonous substance.

165. Only one herbicide, isopropylamine salt of N-Phosphonomethyl glycine proved significantly to depress the colonization of Ageratum houstonianum, a dominant weed species in the experiment field.

166. It was the yellow Gulf weed that had made so much phosphorescence in the night.

167. The families including the most weed species were Gramineae, Cyperaceae, Compositae, Scrophulariaceae, Alismataceae and Lythraceae.

168. As a kind of perennial troublesome weed, Perennial sowthistle (Sonchus brachyotus DC. ) mainly occurred in the North of China, infesting upland crop such as Wheat, Soybean and corn .

169. On the basis of basin-planting experiment, the tests have contrasted the control ratio of 10 kinds weed killer to Murdannja keisak, and have analysed the relation of control ratio and paddy output.

170. Here's a bit of background: In 2005, Monsanto started selling sugar beets that had been genetically modified to tolerate the weed killer Roundup.

171. To create and criticize at the same time is like watering and pouring weed killer onto seedlings at the same time.

172. They encourage internal competition as the way to weed out the weakest.

173. He is superhigh. He hogged more of the weed than Hector and I and he is hunched like a pile of trash against the base of the altar.

174. Dynamics of soil seed bank of exotic weed Mikania micrantha populations in three communities in Neilingding Island were studied.

175. Crofton weed, Ageratina adenophora, is one of the worst invasive weeds in China, has invaded a large areas of southwestern China.

176. Although the FDA classifies purslane as a broad-leaved weed, it's a popular vegetable and herb in many other countries, including China, Mexico, and Greece.

177. Tough brown grass and weed trees sprouted from the gaps between the cobbles, and the mossy walls of what once might have been a huge stone manse.

178. North American grass with slender brushy panicles; often a weed on cultivated land.

179. As one kind of tetrahydrophthalimide herbicides with high efficiency to control the weed in corn and soybean fields, flumiclora-pentyl was firstly synthesized by Sumitomo Chemical.

180. If the herbicide was used after emergence, the effect of 56% MCPA-sodium wettable powder on broad-leaved weed was higher (92.14%). However, that was lower(-29.7%) to gramineous weed.