Garden chafer

General The garden chafer ( Phyllopertha horticola ) is a beetle from the Scarabaeidae family. It does most of its damage in the larval stage when it feeds [...] active at night, taking round bites out of the leaves, starting from the edge. This damage is usually not a problem in vegetables and fruit crops but reduces [...] wings with a dark edge. The neck shield is metallic green to shiny black. In Central Europe, they emerge from the soil in May or June. Low swarming flights

Cactus mealybug

Spilococcus cactearum ) is a pest of cacti and other succulents. It was first described in England but its origin is not clear. It is now found on many gr [...] appearance of Cactus mealybug Mealybugs get their name from the fact that the body of the females from the third nymphal instar onwards are covered with a [...] not yet covered with wax. They are actively mobile and known as ‘crawlers’. From the second instar on, they are covered with white waxy exudate and become

Angular leaf spot

veins. The distinctive feature is the way the lesions look when using different light sources: when reflected light is used, the lesions look dark green [...] General Xanthomonas fragariae is a leaf spot disease found in strawberry. Damage symptoms Xanthomonas fragariae initially causes small, water-soaked lesions [...] green, but when transmitted light is used, they are translucent. When conditions are humid, a viscous bacterial exudate forms on the underside of the leaf

Cottony cushion scale

subtropical countries of the world. It is also periodically discovered in greenhouses in temperate regions, but is not generally a pest in these situations [...] of the same individual. Males are occasionally produced from unfertilized eggs, but mating is not necessary for reproduction. The adult male has well developed [...] General The cottony cushion scale, Icerya purchasi , is considered to have originated in Australia. It was accidentally introduced to California in about

Bacterial spot

development is favoured by temperatures between 24 and 30 °C and high precipitation due to rain, fog or overhead irrigation. Infection is through stomata [...] General Xanthomonas vesicatoria is a bacterium that causes bacterial leaf spot on peppers and tomatoes. Damage symptoms Xanthomonas vesicatoria in tomato [...] on the leaves are also round and small to start with and slightly raised from the leaf surface. They occur on the abaxial (underside of) leaf surfaces

European red mite

Rosaceae grown in greenhouses. It originates from Europe (as can be seen from the common name, European red mite) but is now distributed in all important apple [...] Panonychus ulmi , is mainly a pest of fruit trees (apple, pear, plum and cherry). However, it can attack a large scale of other woody plants and is occasionally [...] when these coalesce the leaves loose colour; this is often referred to as bronzing. When infestation is heavy, leaves can drop. Life cycle and appearance

American serpentine leaf miner

) originates from North America, but occurs also in Europe since about 1976. The American serpentine leaf miner ( Liriomyza trifolii ) is highly polyphagous [...] pea, bean and potato. In greenhouses, it is mainly found on gerbera and chrysanthemum. Today the insect is widespread across the whole world. Damage symptoms [...] and hard to distinguish from feeding spots. The larvae of Liriomyza trifolii are entirely ochre-yellow. When the larva hatches from the egg, it begins to

Citrus mealybug

sap from the plant, stunting growth and causing deformation and / or yellowing of leaves, sometimes followed by defoliation. The overall effect is a reduction [...] produce little wax, so that the light yellow to pink body is visible through its waxy covering. There is often a darker longitudinal stripe running over the [...] and two long tail filaments. Their sole task is to fertilize the females and as soon as a male emerges from its cocoon, it goes in search of a female. A

Mirical

bugs and nymphs actively search for their prey and suck them out. The skin is left behind in its original form. Pack size 500 adults and nymphs. Presentation [...] cardboard strip per plant and, at the end, shake out any remaining M. pygmaeus from the tray into the crop. Hang the cardboard strips over the stalk of a fully-grown [...] clean, dry rock wool slabs, in Diboxes or on leaves. Make sure the material is not disturbed for at least a few hours Introduce in clusters of at least 50

Natupol Booster

once there is no life in the bumblebee colonies, the ‘Beehome’ system should be closed. Remove the plastic liner and the sugar water tank from the hive, [...] Natupol Booster is developed for crops with a short (one to four weeks) intensive blossom period and which produce a lot of nectar. For early blossoming [...] blossoming crops Tripol with extra insulation is a better choice. Crops Pumpkins, zucchini, watermelon, kiwi, commercial seed production such as rape seed, fodder