Featured Research

from universities, journals, and other organizations

Control of mosquito vectors of malaria may be enhanced by a new method of biocontrol

Date:
November 28, 2009
Source:
Public Library of Science
Summary:
Biopesticides containing a fungus that is pathogenic to mosquitoes may be an effective means of reducing malaria transmission, particularly if used in combination with insecticide-treated bednets, according to a modeling study. Results of the study show that incorporating this novel vector control technique into existing vector management programs may substantially reduce malaria transmission rates and help manage insecticide resistance.

Biopesticides containing a fungus that is pathogenic to mosquitoes may be an effective means of reducing malaria transmission, particularly if used in combination with insecticide-treated bednets (ITNs), according to a modelling study conducted by Dr. Penelope Hancock from Imperial College London. Results of the study show that incorporating this novel vector control technique into existing vector management programmes may substantially reduce malaria transmission rates and help manage insecticide resistance.

Related Articles


Using data from laboratory and field studies, the model estimates the impact of different vector control interventions on the mosquito life cycle and the average numbers of mosquitoes that survive to transmit malaria. The results indicate that in order to successfully control malaria transmission, single intervention strategies must be widely used across the community, whether the strategy involves fungal biopesticides or ITNs. If used in combination, the model shows that the interventions can interact to produce greater-than-expected reductions in malaria transmission rates

This outcome is achieved because the presence of ITNs can increase mosquito exposure to biopesticide-sprayed surfaces. Efficient combinations of interventions may allow each to be used at lower levels, and slow the development of resistance in the mosquito population. The results suggest that combining fungal biopesticides and ITNs may be an efficient and effective strategy for malaria vector control.

Malaria is a major contributor to the global disease burden, and disproportionately affects low income countries with climates suitable for transmission. Mosquito control relies heavily on chemical insecticides, but growing problems of insecticide resistance have led to increased interest in novel methods, including biocontrol. The Global Strategy for Integrated Vector Management, developed by the World Health Organisation, encourages the use of multiple vector control technologies in combination. This research has used computer modelling to identify ways in which interventions can be combined to maximise the impact on malaria transmission, given the resources available.

This work was funded by the National Environment Research Council (NERC) via the Centre for Population Biology.


Story Source:

The above story is based on materials provided by Public Library of Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. Hancock PA. Combining Fungal Biopesticides and Insecticide-Treated Bednets to Enhance Malaria Control. PLoS Comput Biol, 5(10): e1000525 DOI: 10.1371/journal.pcbi.1000525

Cite This Page:

Public Library of Science. "Control of mosquito vectors of malaria may be enhanced by a new method of biocontrol." ScienceDaily. ScienceDaily, 28 November 2009. <www.sciencedaily.com/releases/2009/10/091001235445.htm>.
Public Library of Science. (2009, November 28). Control of mosquito vectors of malaria may be enhanced by a new method of biocontrol. ScienceDaily. Retrieved January 31, 2015 from www.sciencedaily.com/releases/2009/10/091001235445.htm
Public Library of Science. "Control of mosquito vectors of malaria may be enhanced by a new method of biocontrol." ScienceDaily. www.sciencedaily.com/releases/2009/10/091001235445.htm (accessed January 31, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, January 31, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

CDC: Get Vaccinated for Measles

CDC: Get Vaccinated for Measles

Reuters - US Online Video (Jan. 30, 2015) The CDC is urging people to get vaccinated for measles amid an outbreak that began at Disneyland and has now infected more than 90 people. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Obama To Outline New Plan For Personalized Medicine

Obama To Outline New Plan For Personalized Medicine

Newsy (Jan. 30, 2015) President Obama is expected to speak with drugmakers Friday about his Precision Medicine Initiative first introduced last week. Video provided by Newsy
Powered by NewsLook.com
NFL Concussions Down; Still on Parents' Minds

NFL Concussions Down; Still on Parents' Minds

AP (Jan. 30, 2015) The NFL announced this week that the number of game concussions dropped by a quarter over last season. Still, the dangers of the sport still weigh on players, and parents&apos; minds. (Jan. 30) Video provided by AP
Powered by NewsLook.com
U.S. Wants to Analyze DNA from 1 Million People

U.S. Wants to Analyze DNA from 1 Million People

Reuters - US Online Video (Jan. 30, 2015) The U.S. has proposed analyzing genetic information from more than 1 million American volunteers to learn how genetic variants affect health and disease. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins