research paper on alligator weed

Exotic plant invasion, a global issue, has a tremendous impact on ecology, economy, human, and animal health. Alligator weed (the world's first aquatic weed) is a serious invasive weed in 32 different countries of South America, Australia, Asia, and North America. Recently, it has been recorded as a threat weed of rice, maize, soybean, vegetables, fruit trees, and pastures, causing 19-45% ...

Alligator weed (Alternanthera philoxeroides) is a highly invasive species that has successfully established in numerous tropical and subtropical regions worldwide. Previous literature suggests that alligator weed was introduced to China in the 1930s as fodder for military horses by Japanese, while its presence in Japan only became apparent in the 1990s. Consequently, the introduction and ...

Alligator Weed Alternanthera philoxeroides Photo by Vic Ramey. Jump ahead several decades when alligatorweed became the target candidate for classical biological control where three insect species: a flea beetle (Agasicles hygrophila Selman and Vogt), thrips, (Amynothrips andersoni O'Neill) and stem borer (Arcola malloi Pastrana). All these ...

The aim of this paper is to synthesize the available literature on the ecology and management of alligator weed ... Although extensive research has been done on alligator weed, still many aspects regarding its ecology have not been addressed in past studies. Previous research on alligator weed

This presentation 1) summarizes the historic research and management paradigms for alligator weed, 2) contextualizes the literature with the current status of alligator weed, 3) discusses the ...

This presentation 1) summarizes the historic research and management paradigms for alligator weed, 2) contextualizes the literature with the current status of alligator weed, 3) discusses the ...

This presentation 1) summarizes the historic research and management paradigms for alligator weed, 2) contextualizes the literature with the current status of alligator weed, 3) discusses the ...

The genus Alternanthera has about 30 species in Argentina (Pedersen, 1999), which probably is the centre of origin and diversification of alligator weed. Okada (1985) recognized two different cytotypes of alligator weed within the native range; invasive hexaploids (2n = ca. 102) and non-invasive tetraploids (2n = ca. 68), suggesting that the ploidy level might affect plant physiology in a way ...

The various symbols in Eq. (1) and elsewhere in this paper are explained in Table 3.The term within the square bracket on the RHS of the equation is the uncovered area of the lake at any given instant t available for the expansion of the patches. Note that although cross-terms of the form n i, n j, i ≠ j do appear in Eq. (1), their presence should not be interpreted as competition between ...

(DOI: 10.1023/A:1008248921849) Biological control of alligator weed Alternanthera philoxeroides (Mart.) Griseb. has been successful in limiting growth in water in areas with mild or warm winters, but not on land. Until recently, herbicides have had very limited short term and no long term effectiveness. Several herbicides that now provide better control include: glyphosate over water, and ...

Research Paper. Direct and indirect ... alligator weed (Alternanthera philoxeroides), and its biological control agent, ... Strong effects of hydrologic environment and weak effects of elevated CO2 on the invasive weed Alternanthera philoxeroides and the biocontrol beetle Agasicles hygrophila, Arthropod-Plant Interactions, 10.1007/s11829-018 ...

The biology and impacts of alligator weed and the efficacy of herbicides and herbicide-based control programs used against it are described. Alligator weed (Alternanthera philoxeroides (Mart.) Griseb.) is a widespread weed that is difficult to control. Despite many published accounts relating to its control there is no published review on herbicide control of alligator weed. This paper ...

Associate Editor for this paper: Jason Bond, Mississippi State University. ... Stakeholder and field surveys on weed issues and research needs in rice production in Texas. Weed Technology, Vol. 35, Issue. 2, p. 242. ... Hiroyuki and Koarai, Akira 2022. Effects of herbicides used for paddy rice and paddy levees on alligator weed (<i ...

Research Paper. Direct and indirect impacts of different water regimes on the invasive plant, alligator weed (Alternanthera philoxeroides), and its biological control agent, Agasicles hygrophila. Hui Wei, Hui Wei. Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China.

spent each year to manage alligator weed (Liu and Diamond 2005). In Victoria, the herbicides glyphosate or metsul-furon-methyl have been the preferred methods of alligator weed management in early invasion aquatic situations. Physical removal has also been employed depending on site characteristics, environmental sensitivity and resources ...

Alligator weed is a non-native species originally from South America. It was first reported in Alabama in the late 1800s. Thick mats of alligator weed form at the shoreline and can extend many feet across the water's surface. Alligator weed has elliptical to lanceolate (sword-shaped) leaves that are paired opposite of each other on the stem.

Soil bacterial community structure changed to some extent, the decreasing tendency of Shanon-Wiener Index of bacteria varied according to different soils, and the number of culturable bacteria significantly correlated with the content of nitrate-N(P0.01). Alligator weed was one of the first announced alien invasive species in our country,however,the interactions between alligator weed and soil ...

The results of the study indicate that increased light levels will accelerate the proliferation of both species in riparian zones, and increased or decreased shade is unlikely to alter neutral interactions between A. philoxeroides and A. sessilis. Riparian ecosystems are under a serious threat of invasion due to the clearance of riparian vegetation, which allows for increased light levels at ...

Miscellaneous Paper A-88-3. U.S. Army Engineer Waterways Experiment Station, Vicksburg, Mississippi, USA. ... Biological Control Research and Development in the United States Department of Agriculture: ... Exploration for natural enemies of alligator weed and related plants in South America, appendix B, pp. 1-66. In Gangstad, E. O., R. A. Scott ...

The Aquatic Plant Management Society, Inc. is an international organization of scientists, educators, students, commercial pesticide applicators, administrators, and concerned individuals interested in the management and study of aquatic plants.

It was first reported in Alabama in the late 1800s. Thick mats of alligator weed form at the shoreline and can extend many feet across the water's surface. Alligator weed has elliptical to lanceolate (sword-shaped) leaves that are paired opposite of each other on the stem. The stem is pale green to pink. Alligator weed can be mistaken for ...

Description. Adults: Alligatorweed flea beetle adults are a small, 0.16" - 0.24" long, black and yellow leaf beetle. This insect can be distinguished by similar-appearing beetles by yellow stripes on its elytra (wing covers) and a solid black thorax. Its common name is derived from the behavior exhibited by adults to jump or fly when startled.

Originally from South America, alligator weed is a fast-growing invader, crowding the shorelines of lakes and reservoirs, choking off native plants that provide food and shelter for wildlife.

Alligator weed profile showing opposite leaves and pink stems. Clover-like flower with leaves. Close-up of alligator weed flower. Alligator weed is a non-native species originally from South America. It was first reported in Alabama in the late 1800s. Thick mats of alligator weed form at the shoreline and can extend many feet across the water ...