• Bacterial wilt, brown rot

  solanacearum is a quarantine organism in Europe and considered a bioterrorist organism in the United States. It is a commonly found soil-inhabitant in tropical [...] subtropical regions and is transferred by the introduction of propagation materials (seed potatoes, cuttings of ornamentals ) from warmer regions. Different [...] range of potential host plants. Damage symptoms In potato, field symptoms of Ralstonia solanacearum are wilting and yellowing of leaves and stunted plants

• Diamond back moth

  species. It is highly migratory and wind-borne adults can travel long distances to invade crops in other regions. Damage symptoms The caterpillar is a surface [...] They are deposited singly or in small groups of two or ten eggs on both the upper and lower surface of leaves, preferentially in depressions, and rarely on [...] and frequently hide in crevices near the bud. In cauliflower and broccoli, pupation may occur in the florets. Initially, the pupa is pinkish-white to p

• Citrus mealybug

  effect is a reduction of photosynthesis and therefore the yield. Flowers and fruit often drop off. Plant sap is rich in sugars, but low in proteins. In order [...] many and diverse host plants. In temperate regions of the world this mealybug poses a problem in greenhouse horticulture, and in the tropics and sub-tropics [...] an adequate intake of protein, mealybugs must therefore ingest large quantities of sap, getting rid of the excess sugars in the form of honeydew. Charac

• Papaya

  that is called papaya, papaw or pawpaw in different countries, is the fruit of the Carica papaya tree of the family Caricaceae. First cultivated in Mexico [...] Mexico, it is now grown in most tropical regions around the world. The papaya fruit is 15-45 cm in length and between 10-30 cm in diameter. Its soft skin [...] skin is an amber to orange colour.

• Charcoal rot

  Macrophomina phaseolina is a common soil fungus in warmer regions, causing charcoal rot. It has a very wide range of host crops, many of which are economically [...] crops in temperate regions it is therefore not a problem. How to prevent Charcoal rot Plant in fields with no history of the disease Use disease-free planting [...] food crops. Damage symptoms In strawberry, this pathogen causes wilting of foliage, stunting of plants and drying and death of older leaves. The youngest

• Aphidius ervi

  Aphidius ervi is available in a bottle ( Ervipar ). Spread the material on rock wool slabs or in Diboxes Make sure the material remains dry and is not moved [...] appearance of Aphidius ervi Aphidius ervi is a very dark aphid parasitoid. The waist is entirely black, without striping. As it can develop in large aphid [...] parasitic wasp Aphidius ervi Aphidius ervi is a parasitic wasp species that plays a significant role in biological control of aphids . The natural enemy Aphidius

• Guava

  tropical fruit is cultivated in many tropical and subtropical regions. A vivid yellow or green on the outside, Psidium guaiava, is the fruit of the Myrtle [...] smallish tree. The pulp varies from off-white to bright pink, and is between 4 to 12 cm in length. The taste ranges from tart to very sweet.

• About Koppert

  Biocontrol is our Nature The answers to many of today’s agricultural and environmental challenges are already out there: in nature itself. At Koppert, [...] we explore, understand, and apply these natural solutions in partnership with nature. Using natural enemies to control pests, bumblebees for pollination

• Oleander aphid

  aphid is cosmopolitan, and can be found in tropical to warm temperate regions throughout the world. It probably originated in the Mediterranean region, the [...] the milkweed aphid, is a common pest of several important ornamental plants in the families Apocynaceae and Asclepiadaceae. It is commonly found feeding [...] the origin of its principal host plant, oleander. Damage symptoms The colonies of bright yellow aphids can easily be seen on the shoots of the host plants

• Wheat

  specifically the Levant region that lies east of the Mediterranean. The wheat plant is an annual plant which is sown either in spring or autumn. The plant [...] the end of May to the beginning of June. This flowering period is rather long (usually lasting longer than a week), because not all flowers of one single [...] Wheat ( Triticum spp., most commonly T. aestivum ) is a cereal grain, but botanically a particular type of fruit referred to as caryopsis. Wheat originates