• Common cockchafer

  larval stage, when it feeds on roots of grasses and clover. The adults feed on the leaves of trees, mainly on oak, maple, beech and plum. Life cycle and [...] and appearance of Common cockchafer The life cycle of the common cockchafer ( Melolontha melolontha ) has the following stages: egg, three larval instars [...] European beetle of the genus Melolontha, in the family Scarabaeidae. Damage symptoms The common cockchafer ( Melolontha melolontha ) does most of its damage

• Melon

  About A melon can be any one of several plants belonging to the family of Cucurbitaceae . The melon plant produces a usually sweet and edible, fleshy fruit [...] . The most common species of melon are: Watermelon ( Citrullus lanatus var. lanatus ) Muskmelon ( C. melo ) Winter melon ( B. hispida ) Cantaloupe Honeydew

• Diglyphus isaea

  ). Release parasitic wasps between the leaves of the crop in the morning or in the evening The dosage of the parasitic wasp Diglyphus isaea depends on [...] feed on leafminers but sustains itself on nectar and honeydew. Life cycle and appearance of Diglyphus isaea Because Diglyphus isaea is an ectoparasite, all [...] Larval stage: When the parasitic wasp larva hatches, it remains beside its host, punctures it and sucks it empty from the outside, as a result of which

• Whitefly

  the spread of diseases. Biological control of whiteflies uses a combination of natural enemies and tools that target different pest stages: Parasitic wasps [...] Here are some of the common signs of whitefly damage: Yellowing of leaves: Whiteflies feed on plant sap, which can cause the leaves of infested plants [...] and stems of infested plants. Sooty mold: Honeydew can also promote the growth of a black, sooty mold that can cover the leaves and stems of infested plants

• Spider mites and other mites

  necrosis. Life cycle of mites The life cycle of mites typically consists of four stages: egg, larva, nymph, and adult. The duration of their life cycle can [...] temperature, humidity, and the availability of food. Here's an overview of the life cycle of plant mites: Egg: The life cycle begins with the female mite laying [...] Biological control of spider mites and other mites uses a range of natural enemies that target different developmental stages of the pest: Predatory mites

• Encarsia formosa

  reliance on chemical pesticides. Life cycle and appearance of Encarsia formosa The development of E. formosa consists of six stages: the egg, three larval instars [...] it may be better to switch to the use of Enermix or Ercal . Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best [...] hours average temperature below 17°C/63°F the control of whiteflies may be insufficient. Behaviour of the parasitic wasp Encarsia formosa Encarsia formosa

• Garden chafer

  ornamental plants. Life cycle and appearance of Garden chafer The life cycle of the garden chafer ( Phyllopertha horticola ) has the following stages: egg, 3 larval [...] family. It does most of its damage in the larval stage when it feeds on roots of grasses and clover. The adults feed on the leaves of trees like oak, hazelnut [...] fruits of, for instance, roses and cherries. Damage symptoms The garden chafer ( Phyllopertha horticola ) does most of its damage in the larval stage when

• Cryptolaemus montrouzieri

  ceases at temperatures below 9°C. Life cycle of Cryptolaemus montrouzieri You can recognize the different life stages of the predatory beetle Cryptolaemus [...] between 25°C and 28°C (68 and 82°F). Feeding behaviour of Cryptolaemus montrouzieri All moving stages of Cryptolaemus montriouzieri prey on mealybugs , seizing [...] appear to prey on all stages of mealybugs equally. Adult ladybirds are good fliers and can disperse over a large area in search of prey. Although Cryptolaemus

• Broad mite

  indication of an attack of broad mite ( Polyphagotarsonemus latus ), is the appearance of dark brown edges at the base of young leaves. In case of a mild [...] caused by viruses. The typical pattern of damage consists of malformation and distortion of the above-ground growth of the plant. The mites show a preference [...] undersides of young, expanding leaves. Symptoms of an attack remain visible several weeks after the mites have been removed. Life cycle and appearance of Broad

• Cotton leafworm

  also attacks the young grains in the ear. Life cycle and appearance of Cotton leafworm Each adult female of the cotton leafworm (Spodoptera littoralis) [...] littoralis) is a highly polyphagous species feeding on plants of 40 families, containing 87 species of economic importance. It originates in Egypt, and is currently [...] the Middle East and parts of Mediterranean Europe including the Balearic Islands, Madeira and the Azores. Damage symptoms Most of the damage is caused by