Weed Identification and Control Part 2

The second of two lectures on weed identification techniques and some methods of control. Here, Joseph M. DiTomaso, UC Cooperative Extension Non-Crop Weed Ecologist, addresses UC Master Gardener students about weed identification and various weed control methods. Topics include yellow star thistle, mowing, burning, and the use of chemicals. Presented as part of the UC [...]

Larvicidal activity of the weed plant Parthenium hysterophous L (compositae) against Aedes aegypti and Culex quinquefasciatus

INTRODUCTION
    Mosquitoes are responsible for more diseases than any other group of arthropods. It is observed at the elevations of 5500 meters and minus situated at depth of 1250 meters below the sea level. Two important vector species of mosquitoes such as Aedes aegypti and Culex quinquefasciatus are selected for the present study. A. aegypti [...]