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Pear (Pyrus) - (Fruits/grape)

List of pests-diseases-weeds for country: U.S.A. (NW)

Information on all pests, diseases and weeds can be found in the downloadable Excel files
click on a pest/disease/weed to display a list of relevant publications

diseases
pests

diseases:

Ascomycota - Dothideomycetes:

Alternaria (anamorphic genus)
Alternaria arborescens
Alternaria rosae
Aureobasidium pullulans
Venturia pyrina

Ascomycota - Leotiomycetes:

Botrytis cinerea
Neofabraea perennans
Phacidiopycnis pyri
Phacidiopycnis washingtonensis
Phacidium lacerum
Phlyctema vagabunda
Podosphaera leucotricha
Sclerotinia sclerotiorum

Bacteria:

Erwinia amylovora
Pseudomonas syringae pv. syringae

Other fungal-like organisms:

Phytophthora cactorum
Phytophthora citricola
Phytophthora gonapodyides
Phytophthora parasitica

Other plant diseases:

Phytoplasma pyri

pests:

Hemiptera - Sternorrhyncha:

Cacopsylla pyricola
Dysaphis plantaginea

Lepidoptera:

Cydia pomonella

Other pests:

Epitrimerus pyri
Tetranychus mcdanieli
Tetranychus urticae