Click beetles

yellowish brown to black. The eggs are laid in May or June in groups in the soil. They hatch about one month later and the larvae start to feed on roots. The [...] skinned. They are up to 25 mm long and usually shiny yellowish brown or light brown with a darker head. Larval development takes 4 to 5 years. When fully [...] beetles are elongate beetles with a hard exoskeleton, with the head deeply retracted into the thorax. When disturbed they lie on their back feigning death and

Phytoseiulus persimilis

development stages only feed on smaller prey stages. The larvae do not eat. They develop quickly to protonymph and then start to feed on spider mites. The quantity [...] cap to open the dosage hole Sprinkle material on leaves or pour into Diboxes Make sure the material remains on the introduction site for at least a few [...] resting period in the larval and nymphal stages. On plants, the oval eggs are usually deposited close to, or in a spider mite colony. They are approximately

Western flower thrips

occidentalis) can be found on a wide variety of plants, including many vegetable and ornamental crops in greenhouses, and on various weeds. It is an especially [...] into the plant tissue with a saw-like ovipositor. Larvae are nearly transparent white or yellowish to orange-yellow, with a large head and bright red eyes [...] and many ornamental crops. Western Flower Thrips Frankliniella occidentalis on a leaf Life cycle and appearance of Western flower thrips The western flower

Common asparagus beetle

instars, a pupal instar and the adult beetle. Adult common asparagus beetles ( Crioceris asparagi ) have a shiny blue head, black antennae and a red thorax [...] spots. Eggs are oval and black to greenish brown and laid singly or in rows of 3 to 10 eggs, standing perpendicularly on the branches and leaves of the [...] dark grey to whitish, have small black heads and three pairs of stout, light brown legs. When fully grown, the larvae drop to the ground to pupate. The

Potato aphid

the world. It is a highly polyphagous species with a preference for Solanaceae (particularly potato), but has also been identified on more than 200 plant [...] Plant sap is rich in sugars, but has a low protein content. Aphids therefore need to extract large quantities of sap to get sufficient protein. The excess [...] and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation occurs early

Chafers

evening, generally in June and July and land on trees to mate. During the night the females move to the ground to lay their eggs. Eggs are shiny and white [...] weeks and the larvae start to feed on roots. The larvae are white-coloured, C-shaped grubs, with a yellow-brown head, and up to 30 mm long when fully grown [...] harmful. Damage symptoms Larval feeding on the roots can lead to yellowing and wilting of plants. Damage can be severe on young plants and especially in grassland

Black vine weevil

hatch have a white, translucent to pinkish body and a reddish brown head. These larvae live in the root zone in the soil where they feed on the roots. [...] between 2 and 20 cm. Pupae are white to cream coloured and 7 - 10 mm long. Outdoors there is a single generation each year. A population of black vine weevils [...] material. Because Otiorhynchus sulcatus is parthenogenetic a single female is enough to start a new population.

Tobacco aphid

never glossy. Winged individuals have a brown-black head and thorax and a reddish abdomen. There is a dark brown spot on the abdomen and several transverse [...] Plant sap is rich in sugars, but has a low protein content. Aphids therefore need to extract large quantities of sap to get sufficient protein. The excess [...] The tobacco aphid tends to form denser colonies, closer to the top of the plant, than the peach potato aphid . It is not known to what extent tobacco aphids

Biological Pest Control

or parasitoids, to control invasive pest species. This method is typically used when a new pest species poses a significant threat to agriculture or ecosystems [...] referred to as biocontrol, is a method of managing pests using natural predators, parasitoids, or pathogens. This approach partners with nature to maintain [...] biological control focuses on enhancing the presence of natural enemies and beneficial organisms in the environment to maintain a balance between pests and

Spidend

dried cucumber leaves. Application Make a hole in the lid and place the cup on the rock wool slab or directly on the soil Protect against direct sunlight [...] until the pest is controlled. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy for your situation [...] search for spider mite colonies and deposit eggs next to the spider mites . Once emerged, the larvae feed on the spider mites. Visual effect Spider mites are