Claim · model-written summary
Parasitism of stemborers was higher in diversified systems than in monocrops.
- Treatment
- diversified systemse1
- Interactor
- lepidopteran stemborerst0pest
- Second interactor
- parasitoidse1biocontrol_agent
- Outcome
- parasitisme1
- Direction
- Highere1
- Comparator
- monocropse1
Zea maysNot reportedMaterialGeneCompoundOrgan / stageSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“lepidopteran stemborers on maize in Kenya”
e1“Higher parasitism in diversified systems compared to monocrops was due to density‐dependent effects rather than superior suitability of such systems to parasitoids”
Title
J. M. Songa; N. Jiang; F. Schulthess; et al. Journal of Applied Entomology 2007. doi:10.1111/j.1439-0418.2006.01116.x
Other claims from this paper (6)
- Intervention effect Mixed systems containing the non-host bean reduced stemborer pest densities more efficiently than systems with millet or sorghum only.
- Mechanism The higher parasitism in diversified systems was attributed to density-dependent effects rather than to superior suitability of such systems to parasitoids.
- Observation The maize-bean system, with the highest proportion of bean plants, had land equivalent ratios above 1.65.
- Observation Most other cropping systems had land equivalent ratios below 1.
- Recommendation Mixed cropping with several cereal species offers little advantage in terms of yield loss abatement due to stemborers and land use efficiency.
- Recommendation Including drought-tolerant crops such as sorghum and millet in the system stabilizes food security in drought-prone areas such as eastern Kenya.