What is pear brown spot? Pear brown spot is a destructive fungal disease caused by Stemphylium vesicarium . The disease affects leaves, shoots, and fruit, reducing fruit quality, marketable yield, and
What is apple scab? Apple scab is one of the most economically important fungal diseases of apple worldwide. Caused by the fungus Venturia inaequalis , the disease infects leaves, blossoms, young shoo
Fusarium spp. is a group of soil-borne fungi with many different species. Fusarium is widespread and can infect a range of host crops. Many species are considered weak pathogens and can only infect wo
General Sclerotinia sclerotiorum, also known as cottony soft root, is a plant pathogenic fungus. It has a very wide range of host plants. Damage symptoms The first symptoms of a cottony soft root ( Sc
General Fusarium is a group of soil-borne fungi with many different species. Fusarium is widespread and can infect a range of host crops. Many species are considered weak pathogens and can only infect
General Pythium is considered a ‘weak pathogen’, meaning that it can usually only affect plants that are in a sub-optimal condition or suffer from stress, caused for example by too much water, too hig
What is apple rust mite? Apple rust mite (Aculus schlechtendali) is a microscopic eriophyid mite that feeds on the leaves and developing fruit of apple trees. Because of its small size, the pest is di
What is apple sawfly? Apple sawfly (Hoplocampa testudinea) is an important early-season pest of apple orchards. Adult sawflies emerge during flowering and lay their eggs in apple blossoms. After hatch
What is San José scale? San José scale (Comstockaspis perniciosa) is one of the most economically important scale insects affecting apple and pear orchards. Both nymphs and adult females feed by inser
What is pear rust mite? The pear rust mite (Epitrimerus pyri) is a microscopic, elongated, wedge-shaped eriophyid mite that feeds on leaves, shoots, and developing fruit in pear orchards. Unlike commo
