Abstract
ABSTRACT Intercropping is used to reduce pests and diseases by decreasing their establishment or performance on the crop, and by enhancing antagonist activity. The effect of intercropping cabbage with white and subterranean clover on epigeic predator activity-density was studied in two successive years in the Netherlands. The presence of clover as an intercrop resulted in significantly higher predator activity-densities and diversity, especially early during the growing season. Several carabid species, in particular Pterostichus melanarius, Agonum dorsale, and Amara similata, were affected, whereas in the staphylinids, Philonthus spp. showed a strong preference for intercropped plots. The contribution of these predators and their larvae to pest suppression and the effect of scale in determining the final result of intercropping is discussed.
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Claims 3
Claim · model-written summary
Clover as an intercrop in cabbage significantly increased epigeic predator activity-density and diversity, especially early in the growing season.
- Taxon
- cabbage
Brassica oleracea var. capitatae1 - Treatment
- presence of clover as an intercrope2
- Interactor
- epigeic predatore1biocontrol_agent
- Outcome
- predator activity-densities and diversitye2
- Direction
- highere2
- Setting
- the Netherlandse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of intercropping cabbage with white and subterranean clover on epigeic predator activity-density was studied in two successive years in the Netherlands”
e2“The presence of clover as an intercrop resulted in significantly higher predator activity-densities and diversity, especially early during the growing season”
Claim · model-written summary
Several carabid species were affected by intercropping cabbage with clover; Pterostichus melanarius, Agonum dorsale and Amara similata are named in particular.
- Taxon
- cabbageBrassica oleracea var. capitatae1
- Treatment
- intercropping cabbage with white and subterranean clovere1
- Interactor
- carabid speciese3biocontrol_agent
- Outcome
- affectede3
- Qualifier
- in particular Pterostichus melanarius, Agonum dorsale, and Amara similatae3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of intercropping cabbage with white and subterranean clover on epigeic predator activity-density was studied in two successive years in the Netherlands”
e3“Several carabid species, in particular Pterostichus melanarius, Agonum dorsale, and Amara similata, were affected”
Claim · model-written summary
Philonthus spp. among the staphylinids showed a strong preference for intercropped cabbage plots.
- Taxon
- cabbageBrassica oleracea var. capitatae1
- Treatment
- intercropped plotse4
- Interactor
- Philonthus spp.
Philonthuse4biocontrol_agent - Outcome
- preferencee4
- Direction
- higherinferrede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of intercropping cabbage with white and subterranean clover on epigeic predator activity-density was studied in two successive years in the Netherlands”
e4“in the staphylinids, Philonthus spp. showed a strong preference for intercropped plots”
The same questions in other papers
intercropping · ecology: diversity · Brassica oleracea (wild cabbage)Positive and negative results
3 papers in the same direction as this paper · 1 reporting no difference from an alternative
- no effect
- positive
- positive
1 paper more in this group
See all 5 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.