Canada Thistle (Cirsium arvense) Response to Clipping and Seeding of Competitive Grasses
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چکیده
منابع مشابه
Enhancing incidence of Puccinia punctiformis, through mowing, to improve management of Canada thistle (Cirsium arvense)
Biological control of Canada thistle using Puccinia punctiformis has been largely unsuccessful in part due to a low incidence of systemically infected shoots and heterogeneous distribution of teliospores in the soil. The present study investigated the feasibility of strategic mowing to improve incidence of systemically infected shoots, and enhance intraand/or inter-season disease development in...
متن کاملAbsorption and Translocation of Aminocyclopyrachlor and Aminocyclopyrachlor-Methyl Ester in Canada Thistle (Cirsium arvense)
Laboratory studies were conducted using C-aminocyclopyrachlor (DPX-MAT28) and its C-methyl ester formulation (DPX-KJM44) to (1) determine the adjuvants’ effects on absorption, (2) compare the absorption and translocation of aminocyclopyrachlor free acid with the methyl ester, and (3) determine the rate at which aminocyclopyrachlor-methyl ester is metabolized to the free acid in Canada thistle. ...
متن کاملProduction and Wind Dispersal of Canada Thistle (Cirsium arvense L.) Achenes
Quantity, quality and dispersal distance of wind-blown achenes and pappi were determined during the peak time of dispersal over twelve site-years in Minnesota during 2006 and 2007. Approximately twice as many pappi than achenes were trapped. Wind blown pappi tend to travel near the ground. Most achenes fell near the parent plants and their population density declined exponentially with increasi...
متن کاملOvercompensation by Pitcher’s thistle (Cirsium pitcheri) in response to damage
There has been evidence that plants exhibit overcompensation after damage through trampling or herbivory. Cirsium pitcheri is an endangered thistle found in the sandy dunes of northern Michigan. The purpose of our experiment was to determine if this monocarpic plant exhibits overcompensation by observing pollination and fitness measures. We recorded pollinator activity, head count, and seed out...
متن کاملFungal Phytotoxins for Control of Cirsium arvense and Sonchus arvensis
Perennial weeds, including Cirsium arvense and Sonchus arvensis, are a common problem in crop fields, especially in agricultural systems with reduced herbicide usage. Herbicides recommended for control of these perennials generally are restricted to only a few active ingredients that tend to have low selectivity, especially on dicot crops. Microbial phytotoxins or their synthetic analogues may ...
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ژورنال
عنوان ژورنال: American Journal of Plant Sciences
سال: 2012
ISSN: 2158-2742,2158-2750
DOI: 10.4236/ajps.2012.39151