1-19 of 19 Books

Rearing and release of Coccinellids for potential control of pear psylla
By R. E. Fye
Pear psylla detection and control
Pear psylla detection and control
By Arthur H. Retan
Psillidy (Homoptera, Psylloidea) i͡u︡go-zapada evropeĭskoĭ chasti SSSR
Psillidy (Homoptera, Psylloidea) i͡u︡go-zapada evropeĭskoĭ chasti SSSR
By A. G. Poddubnyĭ
Transplanting ants to pear orchards for psylla control
Transplanting ants to pear orchards for psylla control
By Roger D. Akre
The food of orchard birds with special reference to the pear psylla
The food of orchard birds with special reference to the pear psylla
By T. T. Odell,New York State Agricultural Experiment Station

An analysis of pear psylla populations 1977-79
By R. E. Fye

A bibliography of Psylla (Homoptera: Psyllidae) on pear trees
By United States. Science and Education Administration
Campyloneura virgula (Herrick-Schaeffer) (Hemiptera: Miridae)
Campyloneura virgula (Herrick-Schaeffer) (Hemiptera: Miridae)
By Bruce Allen Nelson
The potential of endemic natural enemies to suppress pear psylla, Cacopsylla pyricola Förster, in the Hood River Valley, Oregon
The potential of endemic natural enemies to suppress pear psylla, Cacopsylla pyricola Förster, in the Hood River Valley, Oregon
By Steven R. Booth
Monitoring pesticide resistance in Psylla pyricola Foerster from western Oregon pear orchards
Monitoring pesticide resistance in Psylla pyricola Foerster from western Oregon pear orchards
By Peter A. Follett
Evaluation of the possible role of predaceous ants in the management of pear psylla, Cacopsylla pyricola (Foerster) (Homoptera:Psyllidae)
Evaluation of the possible role of predaceous ants in the management of pear psylla, Cacopsylla pyricola (Foerster) (Homoptera:Psyllidae)
By Gregory Stephen Paulson
The pear psylla in Oregon
The pear psylla in Oregon
By Peter H. Westigard
The effect of tree nitrogen on pear psylla, Psylla pyricola Foerster
The effect of tree nitrogen on pear psylla, Psylla pyricola Foerster
By Douglas Goode Pfeiffer
Susceptibility to dust and spray mixtures of the pear psylla (Psylla pyricola Förster)
Susceptibility to dust and spray mixtures of the pear psylla (Psylla pyricola Förster)
By F. Z. Hartzell
Factors influencing pesticide resistance in Psylla pyricola Foerster and susceptibilty in its mirid predator, Deraeocoris brevis Knight
Factors influencing pesticide resistance in Psylla pyricola Foerster and susceptibilty in its mirid predator, Deraeocoris brevis Knight
By Baan, Hugo E., van de.
An analysis of pear psylla populations 1977-79
An analysis of pear psylla populations 1977-79
By R. E. Fye