Hello, I am from Bulgaria and have a applegarden,but this year for first time I have problem with Fire Blight ( Erwinia amylovora) , now I make all operations that I know , but I want somtjing Chemical spray for this Fire Blight , can you help me about this.
Thank you !
Outside United States
Here is a link to our NC Cooperative Extension web fact sheet on Apple Fireblight. I am not sure how this will apply in your country particularly related to chemical recommendations. Spraying is only done during flowering as this web page indicates. When damage is seen the only solutions is to prune it out and disinfect pruning tools between cuts. Here is the fact sheet: