The authors conclude that knowledge of insect stages, seasonal activity and thorough spraying are key to psylla control.

Claim · model-written summary

The authors conclude that knowledge of insect stages, seasonal activity and thorough spraying are key to psylla control.

Taxon

PearPyrus communist0

Interactor

psyllaPsyllae0pest

Outcome

successful control of the psyllae0

Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim

e0

“the chief factors which make for the successful control of the psylla are (1) a knowledge on the part of the grower of the different stages of the insect; viz., hibernating “flies,” eggs and nymphs; (2), an understanding of the activities of the psylla during the dormant season until trees blossom; and (3), thorough work in spraying”

t0

“Pear Psylla”