- Title
- Impacts of a sub-lethal dose of glyphosate on water hyacinth nutrients and its indirect effects on Neochetina weevils
- Creator
- Katembo, Naweji, Hill, Martin P, Byrne, Marcus J
- Subject
- To be catalogued
- Date
- 2013
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/417726
- Identifier
- vital:71481
- Identifier
- xlink:href="https://doi.org/10.1080/09583157.2013.839982"
- Description
- A sub-lethal dose of a herbicide under field conditions was applied to determine if it stimulates an increase in water hyacinth nutrients, thereby increasing feeding intensity by Neochetina spp. weevils used as biocontrol agents of the weed. Nitrogen (N) and carbon (C) were measured and compared between sprayed plants and control plants. At one site (Delta Park), N levels were lower in the sprayed plants compared to the control plants both in the leaves and the crown. At the second site (Farm Dam), leaf N was also lower in the sprayed plants than in the control plants, while no difference was found in crown N. Mean number of feeding scars per cm2 at Delta Park was significantly higher on the sprayed plants compared to the control plants, while no significant difference was found at Farm Dam. At Delta Park, there was no correlation, however, between the number of weevil feeding scars and leaf N or C:N ratio in sprayed plants. In conclusion, the sub-lethal dose of glyphosate did not directly result in an increase in weevil feeding intensity but it can be recommended in an integrated control system to retard water hyacinth growth while conserving the weevil population.
- Format
- computer, online resource, application/pdf, 1 online resource (15 pages), pdf
- Publisher
- Taylor and Francis Online
- Language
- English
- Relation
- Biocontrol Science and Technology, Katembo, N., Hill, M.P. and Byrne, M.J., 2013. Impacts of a sub-lethal dose of glyphosate on water hyacinth nutrients and its indirect effects on Neochetina weevils. Biocontrol Science and Technology, 23(12), pp.1412-1426, Biocontrol Science and Technology volume 23 number 12 p. 1412 2013 1360-0478
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Taylor and Francis Online Terms and Conditions Statement (https://www.tandfonline.com/terms-and-conditions)
- Rights
- Closed Access
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Collections
Hill, Martin Patrick (Distinguished Professor)
RU DST/NRF SARChI for Insects in Sustainable Agricultural Ecosystems
SDG 14. Life Below Water
SDG 15. Life On Land
RU Department of Zoology and Entomology
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|---|---|---|---|---|---|---|---|
| View Details Download | SOURCE1 | Impacts of a sub-lethal dose of glyphosate on water hyacinth nutrients and its indirect effects on Neochetina weevils.pdf | 694 KB | Adobe Acrobat PDF | View Details Download |