Abstract
Broad-spectrum insecticides are the standard control method used in tree fruit orchards to control periodical cicadas (Magicicada spp.) and to reduce associated oviposition injury to woody host plant tissue. The purpose of this study was to evaluate the effectiveness of two organically approved methods; foliar applications of Organic Materials Review Institute (OMRI)-registered insecticides; and physical exclusion to manage periodical cicada oviposition injury in a commercial apple orchard. Insecticides evaluated included kaolin clay and neem + karanja oil (mixed in a 1:1 ratio). The physical exclusion method involved covering trees with polypropylene fabric. Oviposition injury assessed during the study included the number of periodical cicada eggnests, eggnests per scar, and flagged branches. Neither kaolin clay nor neem + karanja oil significantly reduced periodical cicada oviposition injury compared with the untreated control. Trees covered with exclusion fabric sustained no injury from periodical cicadas. Despite the injury sustained by insecticide-treated and control trees, the extent of periodical cicada oviposition with several tree growth characteristics (tree height, tree canopy width, and trunk circumference) was not significantly correlated.
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Claims 4
Claim · model-written summary
Kaolin clay did not significantly reduce periodical cicada oviposition injury relative to untreated trees.
- Taxon
- Apple Trees
Malus domesticat0 - Treatment
- kaolin claye0
- Interactor
- periodical cicadae0pest
- Outcome
- periodical cicada oviposition injurye0
- Comparator
- untreated controle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neither kaolin clay nor neem + karanja oil significantly reduced periodical cicada oviposition injury compared with the untreated control.”
t0“Apple Trees”
Claim · model-written summary
Neem and karanja oil did not significantly reduce periodical cicada oviposition injury relative to untreated trees.
- Taxon
- Apple TreesMalus domesticat0
- Treatment
- neem + karanja oile0
- Interactor
- periodical cicadae0pest
- Outcome
- periodical cicada oviposition injurye0
- Comparator
- untreated controle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neither kaolin clay nor neem + karanja oil significantly reduced periodical cicada oviposition injury compared with the untreated control.”
t0“Apple Trees”
Claim · model-written summary
Exclusion fabric prevented periodical cicada injury to covered apple trees.
- Taxon
- appleMalus domesticat0
- Treatment
- exclusion fabrice0
- Interactor
- periodical cicadas
Magicicadae0pest - Outcome
- injury from periodical cicadase0
- Direction
- no injurye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Trees covered with exclusion fabric sustained no injury from periodical cicadas.”
t0“apple”
Claim · model-written summary
Cicada oviposition was not significantly correlated with tree height, canopy width or trunk circumference.
- Taxon
- appleMalus domesticat0
- Organ / stage
- tree growth characteristicse0
- Interactor
- periodical cicadae0pest
- Outcome
- extent of periodical cicada ovipositione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the extent of periodical cicada oviposition with several tree growth characteristics (tree height, tree canopy width, and trunk circumference) was not significantly correlated.”
t0“apple”
The same questions in other papers
kaolin · crop injury · Malus domestica (apple)Positive and negative results
1 in the opposite direction
- positive
botanical · crop injury · Malus domestica (apple)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
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.