• Angular leaf spot

  fragariae is a leaf spot disease found in strawberry. Damage symptoms Xanthomonas fragariae initially causes small, water-soaked lesions on the underside [...] underside of the leaf. They enlarge to angular spots, often limited by the small veins. The distinctive feature is the way the lesions look when using different [...] reflected light is used, the lesions look dark green, but when transmitted light is used, they are translucent. When conditions are humid, a viscous bacterial

• Pea blight, leaf and pod spot

  General Ascochyta pisi is a fungal plant pathogen that causes A scochyta blight on pea (leaf blight or pea blight) and lesions of stems, leaves, and pods [...] symptoms Ascochyta pisi causes spots on leaves, stems and pods of peas. The spots on leaves and pods are round, on the stems they are more elongated. The [...] brown, sunken and surrounded by a dark brown to red-brown border. The first infection is often on the primary leaves. The fungus is seed borne and thus also

• Bacterial wilt, brown rot

  solanacearum is a plant pathogenic bacterium. It is a soil-borne disease and colonises the xylem, causing bacterial wilt and brown rot in a very wide range [...] range of potential host plants. Damage symptoms In potato, field symptoms of Ralstonia solanacearum are wilting and yellowing of leaves and stunted plants [...] plants. Inside, vascular browning is common with bacterial slime oozing from the cut. When the bacteria transfers to young plants through infected tubers

• Early blight

  stage in all Alternaria species is the asexual stage. Conidia and mycelium overwinter in the soil and on crop residues and cause primary infection of the [...] Survival can be several years, up to eight years for several Alternaria spp. Typically, Alternaria causes early blight of potato and early blight of tomato, [...] presents itself as spots on leaves, petals and stems. These spots can be distinguished by the dark and brown concentric rings that are caused by sporulation

• Cottony soft rot

  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 [...] soft root ( Sclerotinia sclerotiorum ) infection are water-soaked lesions at the stem base. The plant above it wilts and rots. White, fluffy fungal mycelium [...] mycelium grows on the lesions, giving this disease its name cottony soft rot. In the mycelium, big, dark sclerotia are formed. They can easily be seen with

• Fusarium wilt

  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 [...] species are considered weak pathogens and can only infect wounded or stressed host plants. Damage symptoms Fusarium fungi cause vascular wilt, root rot, foot [...] blight in cereals and post-harvest decay. Fusarium oxysporum is the species causing vascular wilt. First the leaves turn yellow and wilt, mostly on one side

• Black sigatoka disease

  also known as black sigatoka, is an ascomycete fungus that causes leaf-spot of banana. Damage symptoms Black sigatoka (Mycosphaerella fijiensis ) first causes [...] spots or streaks on leaves of about one month old. The symptoms run parallel to the veins. Within a few days, the spots become a few centimetres in size [...] ultimately dies. In cases of severe infection leaves may die within a few weeks. Because of the lack of leaf tissues, fruit maturity is hampered. Life cycle

• Botrytis

  General Grey mould ( Botryotinia fuckeliana / Botrytis cinerea ) is a commonly found fungus in many environments. It survives in plant parts like bulbs [...] crop residues or as sclerotia (drought- and cold-resistant structures) in the soil. Damage symptoms As the name suggests, grey mould’s ( Botryotinia fuckeliana [...] fuckeliana / Botrytis cinerea ) most common symptoms are grey-brown lesions. The lesions occur on leaves, stems, fruits and flowers. On flowers, usually

• Strawberry

  About The so-called garden strawberry or Fragaria x ananassa , is nowadays extensively cultivated for its tasty fruit. The particular species of strawberry [...] strawberry is a well-known hybrid species of the genus Fragaria (collectively referred to as the strawberries). Technically speaking, the strawberry is a so-called [...] fleshy, edible part of the fruit does not develop from the plant’s ovaries, but from the receptacle that holds these same ovaries. The so-called ‘seeds’ (achenes)

• Macrocheles robustulus

  deutonymph are pale white with a brown shield, more clearly visible with increasing size. The eggs are oval, about 0.3 x 0.2 mm in size and pearly white. Best [...] Macrocheles robustulus is a species of predatory mite known for its role in biological pest control , particularly in agricultural and horticultural settings [...] robustulus is also a soil-dwelling predatory mite, controlling eggs and larvae of flies , thrips pupae, nematodes and other soil living pests, which can be found