Exploiting chemical ecology and species diversity : stem borer and striga control for maize and sorghum in Africa

By Zeyaur Khan, J. Pickett, J. van den Berg, L. Wadhams, Christine Woodcock. 2000

407 citations recorded by the source corpus.

Subfields: Insect Science, Plant Science

View Paper: https://www.semanticscholar.org/paper/b82b6ec1af3236a63d472c8728d91d13e9f0892a

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Citations in the corpus

The use of push-pull strategies in integrated pest management. (2007, background): “Desmodium intercrops also produce these compounds, together with large amounts of other sesquiterpenes (75), and furthermore, when intercropped with maize or sorghum, suppress the parasitic African witchweed (Striga hermonthica), a significant yield constraint of arable land in the savannah region (”
Farmers’ perceptions of a ‘push–pull’ technology for control of cereal stemborers and Striga weed in western Kenya (2008, background): “Green leaf volatiles emitted by the desmodium repel the stemborer moths away from the maize field (push component), while those released by the Napier grass attract them (pull component) (Khan et al., 2000, 2001).”
The influence of host and non‐host companion plants on the behaviour of pest insects in field crops (2012, background): “This appears to be supported by the work of Khan et al. (2000), who showed that the chemicals present in the companion plant D. uncinatum increased parasitoid ‘foraging’ in laboratory tests and yet they detected ‘no increase in parasitism in their intercropped plots’.”
Climate-adapted companion cropping increases agricultural productivity in East Africa (2015, background): “Volatile organic compounds emitted by desmodium, including (E)-ocimene and (E)-4,8-dimethyl-1,3,7-nonatriene repel stemborer moths (Khan et al., 1997, 2000) and attract the pests’ natural enemies (Midega et al., 2009, 2014b).”
Economic performance of the ‘push–pull’ technology for stemborer and Striga control in smallholder farming systems in western Kenya (2008, unknown): “Desmodium roots produce a blend of chemical compounds, some of which stimulate Striga seeds to germinate while others inhibit lateral growth of Striga roots, thereby hindering their attachment to maize roots (suicidal germination) (Khan et al., 2000, 2002; Tsanuo et al., 2003).”
Diversification Practices: Their Effect on Pest Regulation and Production (2008, unknown): “Moreover the seeds of D. uncinatum represent a valuable commodity that has a local high demand among different groups of farmers (Khan et al. 2000).”
Synthesis, part of a Special Feature on A Social-Ecological Analysis of Diversified Farming Systems: Benefits, Costs, Obstacles, and Enabling Policy Frameworks Ecosystem Services in Biologically Diversified versus Conventional Farming Systems: Benefits, Externalities, and Trade-Offs (2012, background): “Two leguminous plants, Desmodium uncinatum and D. intortum , are also intercropped; these fix nitrogen and produce root exudates that limit the reproductive success of striga weed (Khan et al. 2000).”
Push—pull technology: a conservation agriculture approach for integrated management of insect pests, weeds and soil health in Africa (2011, background): “These include (E)-b-ocimene and (E)-4,8-dimethyl1,3,7-nonatriene, semiochemicals produced during damage to plants by herbivorous insects and responsible for the repellence by desmodium of stemborers (Khan et al., 2000).”
Chemical ecology and conservation biological control (2008, background): “Desmodium spp. produce not only the nonatriene and ocimene, responsible for their repellency to stemborers, but also large amounts of a-cedrene which was initially thought to be repellent to parasitic wasps (Khan et al., 2000).”
Biosynthesis of essential oils in aromatic plants: A review (2016, background): “It will also provide an alternative pest-management strategy based on biological control.((265)) When the chloroplasts targeted strawberry linalool/nerolidol synthase (FaNES1) was overexpressed in Arabidopsis, the resulting transgenic plant produced high”
Evaluation of Napier grass (Pennisetum purpureum) varieties for use as trap plants for the management of African stemborer (Busseola fusca) in a push–pull strategy (2007, background): “Similarly, other grasses and legumes have been shown to repel gravid moths (Khan et al., 2000).”
CIMMYT 1999/2000 World maize facts and trends. Meeting world maize needs: Technological opportunities and priorities for the public sector (2001, background): “) intercropped with maize to deter pests from laying their eggs on the crop (Khan et al. 2000).”
Behavior-Modifying Strategies in IPM: Theory and Practice (2009, background): “Six volatiles are emitted from molasses grass but not in the trap plants; these are (E)-ocimene, (E)-4,8-dimethyl-1,3,7-nonatriene, -caryophyllene, humulene, and -terpinolene (Khan et al., 2000; Pickett et al., 2006).”