Annual sowthistle (Sonchus oleraceus) is an annual weed found in agricultural fields and home gardens. Annual sowthistle is a well-known host for pests and diseases of crops, in addition, it ...

Perennial sowthistle reproduces through seed and vegetatively through rhizomes. It can produce 4,000 to 13,000 seeds per year; however, less than 40 percent of the seeds are viable.

Updated February 9 2018 - 10:53am, first published January 22 2018 - 11:51am Updated February 9 2018 - 10:53am, first published January 22 2018 - 11:51am ...

WHAT was once considered a winter problem, common sowthistle, has become an issue all year round and is now one of the most widespread, broadleaf weeds in southern Queensland and northern New ...

"As sowthistle grows larger it can be more difficult to control with 2,4-D, and 2,4-D would be even less effective on large plants from the resistant populations." ...

ELBA — Perennial sowthistle loves the rich, fine soils and high light intensity of the Elba muckland. Sowthistle doesn’t mind the onions it co-habitates with or winter temperatures.

In a world-first case of herbicide resistance, researchers have confirmed that sowthistle weed in the south east of South Australia is resistant to the popular product 2,4-D.

The spiny sowthistle (Sonchus asper) is a flowering plant that grows up to three feet tall and sprouts small yellow flowers. A native of Europe, it's an invasive weed here in the United States. If ...

Alpine blue-sowthistle, tufted saxifrage and alpine sulphur tresses are protected by law because of the threat of their extinction in the UK. Climbers and hillwalkers have been asked to look out ...