Brown spot of pear (Stemphylium)
Fungus
Identification key : 
Leaf spots and scabs (fungi) (Damage and symptoms on the host)
Scientific name : Stemphylium vesicarium
Other names : Stemphylium leaf blight of onion
Fungus causing brown spot of pear, important in Spain, Italy and Portugal: small brown spots on leaves and fruit that enlarge and can rot the pear. It also causes leaf blight on onion, garlic and asparagus. It survives in leaf litter and ground cover and needs long periods of leaf wetness.
Crops affected : Garlic, Onion, Pear tree
Source : Stemphylium vesicarium (PLEOAL)[Overview] — EPPO Global Database — EPPO
This page lists the bio-preparations in the collection that other references associate with this opportunist: Brown spot of pear (Stemphylium).
Warning: the associations between recipes and opportunists come from other references (traditional practices, publications, user feedback). They are neither a recommendation nor a claim of effectiveness. There is no certainty regarding the preparation, application and use of these bio-preparations. See the regulations
No published recipe is associated with this opportunist yet.
Thrips Leek moth Onion fly Onion downy mildew Leek and garlic rust Tomato spotted wilt virus Chilli thrips Downy mildew Cotton bollworm (Helicoverpa) Rust Brown rot (Monilinia) San José scale