Šta je to streptorija sale ?
A ha , našo sam , evo Wikipedia :
The ascomycete fungus
Mycosphaerella graminicola causes
septoria tritici blotch, a foliar disease of
wheat that poses a significant threat to global
food production.[SUP]
[12][/SUP] It is the primary foliar disease of
winter wheat in most western European countries.[SUP]
[15][/SUP]
It occasionally infects other
grasses including
barley. It is found in all wheat growing areas of the world[SUP]
[16][/SUP] and is the major disease of wheat in the UK.[SUP]
[17][/SUP]
Losses to septoria tritici blotch can reduce yields of wheat by 30 to 50% with a huge economic impact;[SUP]
[12][/SUP] global expenditures for
fungicides to manage septoria tritici blotch total hundreds of millions of dollars each year.[SUP]
[12][/SUP] This fungus is difficult to
control because populations contain extremely high levels of
genetic variability and it has very unusual biology for a pathogen.[SUP]
[12][/SUP]
Mycosphaerella graminicola has an active sexual cycle under natural conditions, which is an important driver of septoria tritici blotch
epidemics and results in high genetic diversity of populations in the field.[SUP]
[10][/SUP]
Control of the pathogen (
antifungal medication) now relies on the application of
azole fungicides which are
demethylase inhibitors that inhibit
lanosterol 14 alpha-demethylase (
CYP51) activity.[SUP]
[15][/SUP]
Mycosphaerella graminicola has
resistance to multiple fungicides, because it has number of
substitutions of CYP51. CYP51 substitutions include
Y137F which confers resistance to
triadimenol,
I381V which confers resistance to
tebuconazole and
V136A that confers resistance to
prochloraz.[SUP]
[15]
Uglavnom kaže da je to najčešća i najteže kontrolisano oboljenje pšenice u Z Evropi , donosi gubitke 30-50% , najčešće dolazi već u sjemenu. Ja se zaletio pa sijao neku novu LG sortu , u manjem dijelu imam tavanušu i tu nema problema a nije ni prskano . Na deklaracije je pisalo LG doradjeno u Srbiji . [/SUP]
