Redroot pigweed (Amaranthus retroflexus), an upright summer annual, can grow to six feet tall. It germinates through the warm, summer months and sends down a deep taproot, making it drought tolerant.

Large crabgrass, redroot pigweed, and hairy galinsoga are three important weed species in bell pepper and other crops in the northeastern United States. Field experiments were conducted in 1998 and ...

Help can’t arrive fast enough for corn and soybean farmers who routinely battle Palmer amaranth (pigweed) or waterhemp, especially those with resistance to currently available herbicide technologies.

The effects of ethylene upon germination of common cocklebur (Xanthium pensylvanicum Wallr.) and redroot pigweed (Amaranthus retroflexus L.) seeds were studied. In laboratory tests with seeds in ...

Marestail and pigweed are some of the most dreaded weeds for crop producers across North Central Kansas, especially when they grow in soybean fields. Controlling these weeds, before they reach four ...

With the recent moisture and the heat of summer, summer annual weeds have sprouted and are growing. Winter annuals have produced seed and are at the end of their life cycle. Winter annuals with seeds ...

The 5,000-foot north face of Mount Temple (11,627 feet) in the Canadian Rockies. The Greenwood/Locke route ascends a snow couloir down low to a steep, rocky buttress right of center. With the recent ...

Redroot pigweed (Amaranthus retroflexus) is a summer annual found in agricultural fields, home gardens and open spaces. Redroot pigweed is of special importance because of its ability to produce ...

With the recent moisture and the heat of summer, summer annual weeds have sprouted and are growing. Winter annuals have produced seed and are at the end of their life cycle. Winter annuals with seeds ...