European red mite

European red mites on leaves of trees causes initially brown spots on the leaves and when these coalesce the leaves loose colour; this is often referred to [...] 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 [...] bronzing. When infestation is heavy, leaves can drop. Life cycle and appearance of European red mite The European red mite feeds mainly on the undersides of leaves

Hemispherical scale

depends on the host plant and can vary from 2 to 4.5 mm. The young nymphs are white to yellowish, more oval in form and with a raised H-pattern on the dorsal [...] instars live on the underside of leaves, often close to the midrib. Only when an infestation is particularly severe do individual scales appear on stems, branches [...] shiny brown domes on leaf undersides close to the midribs. They produce large amounts of honeydew causing build-up of sticky deposits on nearby surfaces

Box tree moth

common one is mostly iridescent white with a dark brown band at the outer margin and a characteristic white spot on the forewing, while the other is mostly [...] light brown with a white spot on the forewings. The adult moths are good flyers. During daytime, they rest on the box trees or on other surrounding plants. [...] Korea, China). The box tree moth ( Cydalima perspectalis ) is an oligophagous species feeding on the leaves of box tree ( Buxus spp. ) species mainly. Severe

Boisduval scale

scale is the presence of the scales on upper and lower leaf surfaces, fruits, and stems of plants. On palms, Boisduval scales are normally found on the leaves [...] appearance and damage symptoms. Here, the Boisduval scale is described in more detail, as it is the most important one. The Boisduval scale, Diaspis boisduvalii [...] the leaf midrib and the portion of the petiole that is covered by the sheath. Small infestations on orchids cause extensive discolouration. Life cycle and

Tomato russet mite

are roughly 0.05 mm in diameter and are laid on the underside of leaves, on leaf petioles, and on stems on the lower portion of plants. When newly laid [...] galls but lives freely (vagrant) on tomato plants. Aculops lycopersici was detected for the first time in Australia and is a pest in tomatoes in all areas [...] symptoms Damage is caused by the mites sucking out the contents of plant cells. Affected leaves are slightly curled and acquire a silvery sheen on the underside

Tomato moth

(Lacanobia oleracea) is a particularly a pest in greenhouses but can also inflict damage on outdoor crops. It is a polyphagous species feeding on plants of 14 [...] the body is a glossy green. Later, a conspicuous yellow longitudinal stripe with black dots above is visible on either side. The yellow stripe is bordered [...] wn while the abdomen is a lighter grey-brown. The females of the tomato moth (Lacanobia oleracea) deposit their spherical eggs on the underside of leaves

Dwarf bunt

heads. The glumes are opened either on some or on all spikelets, showing the bunt (smut spore) they contain, which is larger than a normal kernel. The bunt [...] General Tilletia controversa is a plant pathogen. It is a fungus known to cause the smut disease TCK smut in soft white and hard red winter wheats, as [...] of Dwarf bunt Tilletia controversa survives as teliospores in the soil or on seed. The soil-borne teliospores are the main source of primary infection

Wheat bunt

heads. The glumes are opened either on some or on all spikelets, showing the bunt (smut spore) they contain, which is larger than a normal kernel. The bunt [...] tritici and Tilletia laevis only differ in one gene and easily hybridize. There is debate whether they should indeed be considered separate species, since they [...] Tilletia tritici and Tilletia laevis survive as teliospores in the soil or on seed. These teliospores germinate in response to moisture and form basidiospores

Aphidius matricariae

matricariae is available in a bottle ( Aphipar-M ). Spread the material on rock wool slabs or in Diboxes Make sure the material remains dry and is not moved [...] wasp Aphidius matricariae Aphidius matricariae is a parasitic wasp belonging to the family Braconidae and is widely recognized for its role in biological [...] aphids . This small wasp is a valuable natural enemy in both agricultural and horticultural settings. Aphidius matricariae is used for the control of the

Two-spotted spider mite

colour of the adults often depends on the crop in which they occur (e.g. on cucumbers they are often yellow-brown, on tomatoes they are mainly red-brown) [...] large dark spots on their body. Movement: Spider mites are slow-moving and tend to cluster on the undersides of leaves, where they feed on plant sap. They [...] nymphs and adults cause damage to the host plant by feeding on plant sap. They mainly occur on the underside of leaves where they pierce the cells and suck