Australia

Blossom blight

Monilinia laxa (Sclerotinia laxa)

M. laxa infects the aerial parts of the host plants to give a variety of symptoms, including blighting of blossoms, buds, leaves and twigs; cankers on woody tissues; and rotting of fruits. It is considered to be a pathogen of blossoms and twigs more than of fruits. It is the main fungal disease of stored peaches and nectarines in Europe.
Blossom and Twig Blight
This is the primary feature of brown rot caused by M. laxa in spring. The first symptom of blossom blight is necrosis of the anthers, which proceeds to the floral tube, ovary and peduncle. Infections may extend into and then girdle the twig. As infected flowers wilt and turn brown, they often become affixed to the twig in a gummy mass. In wet weather, infected flowers become covered with greyish to tan conidiomata. On apricot, plum and prune, all blossom parts are susceptible. Apricot is the most susceptible to blossom blight, followed in order by prune, sweet cherry, peach, sour cherry and plum. Symptoms appear first on sepals, anthers and stigmata as the blossoms open. Blight symptoms are expressed when the fungus girdles the peduncle.

Pesticides
Aprisco 900 WG
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Bravo
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Bravo Weather Stik
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Cavalry Weatherguard
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Cherokee 900
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Chief 250
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Chief Aquaflo
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Chorus Foliar
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Conan 500
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Conan 720 SC
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Detour 250 EC
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FMC Captan 900
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FMC Chlorothalonil 720
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FMC Chlorothalonil Bond 720
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FMC Propiconazole 250
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FMC Propiconazole 550
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Isacop
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Luna Sensation
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Ospray Captan WG
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Ospray Sulphur 800WG
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Propeller 250
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PropiMax
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Rotam Aprisco
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Rotam Proten 250 EC
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Rovral Aquaflo
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Rovral Liquid
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Shelby 250
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Solaris 300 EC
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Subscribe
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Thiovit Jet
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Tilt 250 EC
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Uniguard 500 WP
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Ziram Granuflo
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Arysta LifeScience Copper Oxychloride 50 WP Fungicide/Bactericide
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Arysta LifeScience Procon 250 EC
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Barmac Copper Oxychloride
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Barmec Ziram DG
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Barrack 720
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Barrack Betterstick
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Capitaine 900 WG
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Captan 800WG
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Captan 900WG
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Captan WG
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Chlornil 720 SC
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Chloronil Pro
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Chlorothalonil
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Clash Dry 900 WG
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Clash Storm Guard 720 SC
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Copper Oxychloride
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Corvette Flowable
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Corvette Liquid
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Drover Guard 500 SC
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Echo 720
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Fortress 500
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Iprine 250
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Iprine 500
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Iprodione
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Iprodione Aquaflo
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Isagro Neoram 375 WG
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Metapris 500 SC
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Orthocide WG
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Pacific Echo 500 SC
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Prestige 250
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Prop 500
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Propicon 250 EC
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Propicon 550 EC
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Propicure
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Saprol
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Sumiclex 500
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Transact
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Tyrant 500
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Ziragranz
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