Direct competition for resources is generally considered the primary mechanism for weed-
induced yield loss. A re-evaluation of physiological evidence suggests weeds initially impact …

Core Ideas Cover crops can effectively suppress weeds after termination and up to early
stage of crop growth. Use of cover crops for early season weed suppression did not affect …

Accurate and timely detection of weeds between and within crop rows in the early growth
stage is considered one of the main challenges in site-specific weed management (SSWM) …

In little over 20 yr, Palmer amaranth has risen from relative obscurity to its current status as
one of the most widespread, troublesome, and economically damaging agronomic weeds in …

Mechanical weed control in agriculture has advanced in terms of precision and working rate
over the past years. The real-time communication of implements with sensor systems further …

Advances in statistical software allow statistical methods for nonlinear regression analysis of
dose-response curves to be carried out conveniently by non-statisticians. One such …

The critical period for weed control (CPWC) is the period in the crop growth cycle during
which weeds must be controlled to prevent unacceptable yield losses. Field studies were …

Elliptic Fourier (EF) and discriminant analyses were used to identify young soybean (Glycine
max (L.) merrill), sunflower (Helianthus pumilus), redroot pigweed (Amaranthus retroflexus) …

The widespread evolution of multiple herbicide resistance in the most serious annual weeds
infesting Australian cropping fields has forced the development of alternative, non-chemical …

Row spacing affects the time of canopy closure, thus influencing the growth and
development of both crop and weeds. Field studies were conducted in 1999, 2000, and …