Plant Pests

beetles , and many others. These insects often feed on plant tissues, causing damage to leaves, flowers and fruits. They can also transmit diseases to [...] are tiny arachnids that pierce plant cells and suck out their contents, causing damage to leaves, flowers and fruits. Plant-parasitic nematodes Plant-parasitic

Cabbage leafroller

spectrana) is native to North-West Europe. It is a highly polyphagous species causing damage to field grown cabbage, apple, pear as well as maple, popular, spruce [...] In chrysanthemum too, this species is an increasing problem, and it has caused problems in sweet pepper since the mid 1980’s. In protected soft fruit [...] tip, while older caterpillars eat a hole in the shoot and hollow it out, causing the shoot or growing point to wilt and die. Life cycle and appearance of

Blueberry

them from causing significant damage to the crops. Blueberry diseases such as Botrytis , Phytophthora and other fungal pathogens can cause serious harm [...] By implementing IPM strategies, blueberry growers can mitigate the damage caused by pests and diseases, preserve the quality of their crops, and promote

Grey mould

foot rot complex, which causes rotting of the foot and may cause death of the plants. In cucumber and tomato the fungus causes lesions on pruning wounds

Cyclamen mite

well as insect and mite predators and parasites. Those living on plants can cause considerable damage to their host. Tarsonemids like the cyclamen mite ( [...] slowly. Symptoms vary depending on the host plant and can resemble the damage caused by viruses. Infested leaves are twisted or curled, distorted, brittle and [...] flowers are damaged and leaf growth is inhibited. In hedera, a mite attack can cause baldness in parts of the stem. Gerbera flowers deform and discolour with

Chafers

soil and feed on the roots of many plants. They are a serious pest that can cause substantial damage. The adults are not harmful. Damage symptoms Larval feeding [...] plants and especially in grassland and turf. There, secondary damage is often caused by birds and small mammals digging for the grubs to eat them. Life cycle

Caterpillars

chewing mouthparts and can devour large amounts of plant tissue. Many species cause damage to crops. The most harmful caterpillars that occur in greenhouses [...] your crop Life cycle of caterpillars Caterpillar damage Caterpillars can cause serious economic damage. Most species feed on leaves and young shoots, and [...] are not able to chew and therefore graze the underside of leaves. This causes a window effect where the epidermis of the upper leaf surface remains undamaged

Powdery mildew

General Powdery mildew is a fungal disease that is caused by many different species of fungi such as Erysiphe, Podosphaera, Oïdium, Leveillula. Damage [...] happens. In apple, pear, outdoor grown rose and other Rosaceae , the fungus causing powdery mildew is extremely sensitive to water and ‘hides’ on the underside [...] or drop off. Life cycle and appearance of Powdery mildew The fungi that cause powdery mildew ( Erysiphe, Podosphaera, Oïdium, Leveillula ) are all biotrophic

Root rot of carrot

lead to significant postharvest losses Several different fungal pathogens cause similar symptoms, which are collectively known as black spot diseases. When [...] dauci starts mainly along the leaf edges. Rhexocercosporidium infection can cause loss of seedlings. The subsurface parts turn dark brown to black, while the [...] ion is more effective. Topping efficiency: Mechanical harvesting always causes some damage to carrot roots, which can be infected by Rhexocercosporidium

Stable fly

between animals including the bacteria that cause anthrax, leptospirosis and anaplasmosis, the viruses that causes equine infectious anemia (EIA) and hog cholera [...] stamping and other strategies used by animals to avoid being bitten. Damage caused by parasitism of Stomoxys spp. on livestock includes: Weakened animals and [...] cholera, and the protozoan trypanosomes that cause surra. Life cycle and appearance of the Stable fly Adult stable flies are between 5–7 mm in size and