American Weeds

Weeds

The freckled cowslip, burnet, and green clover, Wanting the scythe, all uncorrected, rank, Conceives by idleness, and nothing teems But hateful docks, rough thistles, kecksies, burs, Losing both beauty and utility. S ometimes in the spring, when I'm on my hands and knees among the azaleas, pulling out purslane and dandelion , I think how wonderful gardening would be if only it weren't for weeds...

The Anaerobic Digestion of Cattail Weeds to Produce Methane Using American Cockroach Gut Microorganisms

The objective of this study was to characterize anaerobic batch digestion of cattail weeds botanical fractions singly and in combination using American cockroach gut microorganisms as an inoculum. The effects of increasing concentration of cattail weeds expressed as percentage of total solids (TS) from 5, 15, to 30 and 60% on methane yield was investigated at ambient temperature of 29±1°C. The ...

Biological control of weeds.

Classical biological control, i.e. the introduction and release of exotic insects, mites, or pathogens to give permanent control, is the predominant method in weed biocontrol. Inundative releases of predators and integrated pest management are less widely used. The United States, Australia, South Africa, Canada, and New Zealand use biocontrol the most. Weeds in natural ecosystems are increasing...

Crowd Out Weeds

( Corner Warren Street ) N E W YORK t h e de fec t by h a u l i n g out g r e e n s hose and s p r i n k l e r s d u r i n g t he day. W i t h t h e h o s e s y s t e m , t he missed spots can be eas i ly seen t he fo l lowing morn ing and as t h e e q u i p m e n t is a l r e a d y the re , it is a s imp le m a t t e r to cover t h e dry a reas . W h e r e I a m conce rned , t h i s does not i...

Genetic Diversity in Weeds