Lolium rigidum (annual ryegrass) is the most costly winter weed in Australia and has recently been observed growing summer. The occurrence of L. well documented, but there no research on populations this that germinate grow Herein, we discuss how potential cause seasonal expansion may be related to a change dormancy duration. Dormancy can affect germination patterns growth reproduction plant sp...

Studies on the population and infestation rates of domestic cockroaches were conducted from September 1999 to October 2000 in 154 residences in 21 districts (dong) in Busan and 170 residences in 12 districts in Seoul, Republic of Korea, using sticky traps. Blattella germanica, Periplaneta americana and Periplaneta fuliginosa were collected from three different types of houses, apartments, singl...

Submit Manuscript | http://medcraveonline.com non-rice crops in a rotation such as wheat. Therefore, puddling for rice transplanting should be avoided as it has adverse effects on the succeeding upland crops. Unpuddled transplanting is an alternative method for rice establishment which can be adopted to overcome these problems and also to reduce cost of rice production. For this system, the lan...

Limited tillage provides a number of benefits, but question remains how it affects weed community and biodiversity evolving from the community. Our field experiment was established in cadastral area Branišovice (South Moravian Region, Czech Republic). Three different technologies were used this experiment: conventional tillage, minimum no-tillage technology. In 2001–2004, infestation by weeds e...

Field experiments were conducted to study weed population shifts in long-term conservation tillage systems. The objectives of this study were to determine weed community abundance, diversity and composition on conventional tillage (CT), minimum tillage (MT), no-tillage with paraplow (ZT) and no-tillage (NT) systems, and to identify species that are associated with specific tillage systems. The ...

The commercial release of transgenicmaizewith resistance to rootworms incorporated with glyphosate tolerance has become a reality, and questions have arisen regarding the impact of grassy weed phenology on the biology of the western corn rootworm, Diabrotica virgifera virgifera LeConte. A study to determine the impact of host plant phenology on the survivorship (percentage larval recovery), gro...

Remote detection of non-native invasive plant species using geospatial imagery may significantly improve monitoring, planning and management practices by eliminating shortfalls, such as observer bias and accessibility involved in ground-based surveys. The use of remote sensing for accurate mapping invasion extent and pattern offers several advantages, including repeatability, large area coverag...