Claim · model-written summary
Some unsprayed old apple orchards bore good or fair crops practically free of scale.
- Taxon
- apple
Malus domesticae0 - Interactor
- scalee0pest
- Outcome
- annual crops of good or fair fruit, practically free from scalee0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“old orchards, chiefly apple, that bear annual crops of good or fair fruit, practically free from scale, though no spraying work is ever done in the orchards”
Title
Cultivation and Susceptibility to Insect Attack
John B. Smith Journal of Economic Entomology 1908. doi:10.1093/jee/1.1.15
Other claims from this paper (7)
- Association Vigorous, sappy growth was more infested and injured than slow, hardy growth.
- Association Trees in well cultivated, highly fertilized orchards were more likely to suffer scale attack.
- Association Slow-growing trees or trees in sod without much care were more resistant to scale attack.
- Association Trees infested while young and vigorous suffered more than trees first infested at bearing age.
- Observation Some previously treated and then abandoned infested trees later became practically free from scale.
- Mechanism The authors suggested nitrogenous fertilizers used for rapid growth may lessen resistance to insect attack.
- Recommendation The authors advocated cultivation for hardier growth and scale resistance, even at a cost to growth.