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List of diseases and pests
zucchini and squash

 

(*: disease or pest absent in France or at reduced incidence)

 

Parasitic diseases

  • Fungi

 

Aerial Fungi

- Botrytis cinerea (gray mold)
- Cladosporium cucumerinum (leaf spot or gray cloud, cucumber scab)
- Gloeosporium orbiculare  (=  Colletotrichum orbiculare ) (anthracnose ou nuile rouge)
- Didymella bryoniae (gummy cankers on stem, black rots on fruit)

- Monographella cucumerina (plectosporiose)*

- Podosphaera Xanthi ( Sphaerotheca fuliginea ) and Golovinomyces cichoracearum var. cichoracearum ( Erysiphe cichoracearum ) (oïdium on "white")

- Pseudoperonospora cubensis (mildiou)


Telluric fungi

- Fusarium solani f. squash

- Monosporascus cannonballus
- Phomopsis sclerotioides
- Phytophthora capsici (damping off, root and crown rots, lesions on leaves and fruits)
- Sclerotinia sclerotiorum (sclérotiniose)
- Thanatephorus cucumeris ( Rhizoctonia solani , rhizoctone brun)

Vascular fungi

- Verticillium dalhiae (verticilliose)

Rotten fungi on fruits

- Choanephora cucurbitarum * ( rot Choanephora )

- Fusarium spp. (rot in Fusarium)

- Rhizopus stolonifer ( rot Rhizopus )

 

  • Bacteria

- Pectobacterium carotovorum subsp. carotovorum
- Xanthomonas cucurbitacea

  • Virus

- Beet pseudo-yellows virus (BPYV) - Virus pseudo beet yellows

- Cucumber mosaic virus (CMV) - virus Cucumber mosaic

- Cucurbit aphid-born yellow virus (CABYV) - Cucurbit yellows virus

- Tomato leaf curl New Delhi virus (ToLCNDV) - Tomato spoon leaf virus New Delhi

- Papaya ring spot virus (PRSV) - papaya ringspot virus

- Tomato leaf curl New Delhi virus - New delhi leaf virus in spoon

- Watermelon mosaic virus (WMV) - mosaic virus watermelon

- Zucchini yellow mosaic virus (ZYMV) - Virus zucchini yellow mosaic

  • Nematodes

- Meloidogyne spp. (root-knot nematodes)


Non-parasitic diseases


- Climatic and environmental accidents (hail, sunburn)
- Genetic abnormalities (chimeras)
- Squash silvering
- Fasciation of the stem
Sooty mold

- Fruit drips

- Physiological yellowing
- Physiological macules
- Apical necrosis
- Phytotoxicities

 

Pests

  • Insects and mites

- Mites
Whiteflies
- Leafminers
- Noctuids
- Aphids
- Thrips

Last change : 07/08/21