Survival of parrotfeather following simulated drawdown events
نویسنده
چکیده
Non-native aquatic plants can often invade and rapidly outgrow native species in shallow water bodies resulting in the establishment of monotypic populations of the invading plant. Parrotfeather (Myriophyllum aquaticum Vell. Verdc.) is a non-native species that can be a nuisance in shallow water bodies. Therefore, we simulated a 0, 2, 4, 6, 8, and 12 wk winter and summer drawdown under controlled mesocosm conditions to evaluate the survival of parrotfeather with respect to seasonal and durational effects of drawdown events. The winter drawdowns did not affect (P 1⁄4 0.89) parrotfeather survival. Parrotfeather survival was 68 to 80% between winter drawdown events. Conversely, summer drawdowns were much more effective (P , 0.01) with the exception of the 2-wk duration. Parrotfeather survival was 75% following a 2-wk drawdown and 18% following a 12-wk drawdown. The survival of parrotfeather in this study indicates that summer drawdowns may offer short-term suppression, as this species can withstand drawdowns of 12 wk. Longer drawdown durations or an integrated approach is required for complete control.
منابع مشابه
Eurasian Watermilfoil and Parrotfeather Control Using Carfentrazone-ethyl
Two invasive weed species, Eurasian watermilfoil ( Myriophyllum spicatum L.) and parrotfeather [ Myriophyllum aquaticum (Vell.) Verdc.], were grown in outdoor mesocosms to determine the efficacy of carfentrazone-ethyl (a,2-dichloro-5[4-(difluoromethyl)-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl]-4-fluorobenzenepropanoic acid, ethyl ester), alone and in combination with 2,4-D, a herbicide ...
متن کاملCarfentrazone in Combination with 2,4-d for the Control of Eurasian
Invasive plants degrade aquatic ecosystems throughout the United States. These weedy species destroy fish and wildlife habitat and interfere with water uses and ecological processes. Currently, there are only eight herbicides labeled for use in aquatic sites. In order to control newly introduced invasive plants and implement resistance management stewardship, additional chemistries and active i...
متن کاملInvasive Plant Science and Management Comparison of Subsurface and Foliar Herbicide Applications for Control of Parrotfeather (Myriophyllum aquaticum)
متن کامل
Microencapsulation of probiotics by calcium alginate-gelatinized starch with chitosan coating and evaluation of survival in simulated human gastro-intestinal condition
Microencapsulation as one of the most modern methods has remarkable effects on probiotic survival. In this study Lactobacillus casei (ATCC 39392) and Bifidobacterium bifidum (ATCC 29521) were encapsulated using calcium alginate-gelatinized starch, chitosan coating and inulin via emulsion technique, and were incubated in simulated gastric juice (along with pepsin, pH=1.5) and simulated intestina...
متن کاملMicroencapsulation of probiotics by calcium alginate-gelatinized starch with chitosan coating and evaluation of survival in simulated human gastro-intestinal condition
Microencapsulation as one of the most modern methods has remarkable effects on probiotic survival. In this study Lactobacillus casei (ATCC 39392) and Bifidobacterium bifidum (ATCC 29521) were encapsulated using calcium alginate-gelatinized starch, chitosan coating and inulin via emulsion technique, and were incubated in simulated gastric juice (along with pepsin, pH=1.5) and simulated intestina...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2013