Sciarid flies

although some species can also eat living plant material. The adults prefer humid habitats and are attracted to a broad range of pathogenic and non-pathogenic [...] result of larvae feeding on the roots. The larvae feed mainly on decaying plant material and on algae and fungi present in the soil. They, however, can also [...] plants that are kept humid and well-watered are particularly at risk. Life cycle and appearance of Sciarid flies The life cycle of sciarid flies has the following

Spical

californicus is most effective at temperatures between 13 and 32°C (55 and 90°F) and is sensitive to relative humidity below 60%. Combined use Can be combined with [...] with Phytoseiulus persimilis and Feltiella acarisuga . Precautions Application of this product can cause sensitization or allergic reactions, we therefore [...] Natutec Airbug or Natutec Airobug Dosage The dosage of Spical depends on climate, crop and pest density and should always be adjusted to the particular situation

Impatiens thrips

been able to spread as a consequence of the trade in foliage plants. Impatiens thrips (Echinothrips americanus) has a wide range of hosts. In addition to [...] pepper, cucumber and eggplants. It lives exclusively on the leaves and is often present on weeds in greenhouses. Life cycle and appearance of Impatiens thrips [...] Adults are found on both upper- and undersides of the leaves. This species of thrips is relatively large. Both males and females are dark brown to black

Cabbage looper

have a voracious appetite and can daily consume up to three times their body weight. Plants can be severely defoliated and stunted. Life cycle and appearance [...] appearance of Trichoplusia ni Adults can deposit up to 300 eggs on the underside margins of the upper leaves of plants. The eggs have a spherical shape, with [...] the leaf, and are a yellowish or greenish white colour. The Larvae hatch after 3 to 4 days. Since their legs are confined to the front and rear of the body

Feltiella acarisuga

their crops and identifying the presence of eggs, larvae, pupae, and adults of Feltiella acarisuga , growers can gauge the effectiveness of this biocontrol [...] acarisuga is a good control agent. The adults are not predatory and only need water and sugar. Life cycle of Feltiella acarisuga Growers can distinguish [...] diameter of spider mite eggs and almost banana shaped. Larval Stage : The colour of the larva is usually orange but can vary according to the colour of prey

Shore fly

lettuce and herbs also causes cosmetic damage, and sometimes this can occur on such a scale that growth, particularly of young cuttings, can be retarded [...] about 4 to 5 mm long, and stout with short antennae and short legs. The head of the adult has a pair of conspicuous eyes. The wings have grey-brown patches [...] plants directly, as they feed on green algae. However, they can transmit plant diseases and can be a nuisance to greenhouse works by their sheer numbers. Frass

Cabbage leafroller

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 Cabbage leafroller [...] these webs that cause the leaves to curl. Many of these webs are empty, and it is thought that the caterpillars probably make a series of webs during their [...] The yellow eggs are laid in batches of 10 to 90 pieces and covered with a gelatinous layer on the upper side of leaves, preferably on major veins or

Western flower thrips

(Frankliniella occidentalis) can be found on a wide variety of plants, including many vegetable and ornamental crops in greenhouses, and on various weeds. It is [...] spotted wilt virus (TSWV) and impatiens necrotic spot virus (INSV). Both viruses affect a wide range of plants, and often a single host plant may be infected [...] adults both pairs of wings are fully developed. Damage symptoms Thrips cause damage to plants by piercing the cells of the surface tissues and sucking out their

Crazy roots, hairy roots, crown gall

four species cause the growth of galls on the stems, which are first white and later turn brown. Only Rhizobium radiobacter causes galls and tumours on [...] dispersed by rain and wind and by humans and tools. Until now, no bacteria have been isolated from crazy roots. This disease seems to be caused by a change in [...] hormonal system of the plant resulting from the Rhizobium infection. Rhizobium rhizogenes puts a Ri-plasmid in the plant tissue and causes a genetic change

European red mite

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 a problem [...] growing areas of the world. European Red Mite Control with Predatory Mites Damage symptoms Feeding of European red mites on leaves of trees causes initially [...] problem on roses and other ornamentals of the family Rosaceae grown in greenhouses. It originates from Europe (as can be seen from the common name, European red