Tobacco aphid

East and is a key pest of tobacco crops in both the United States and South America. The tobacco aphid ( Myzus persicae subsp. nicotianae ) is also encountered [...] excess sugar is secreted in the form of honeydew, making the crop and its fruit sticky. Black fungal moulds ( Cladosporium spp.) grow on this honeydew [...] in colour. When reproduction is asexual, the young aphids are born as developed nymphs. They immediately start to feed on plant sap and grow rapidly. Aphids

Woolly apple aphid

General The woolly aphid, Eriosoma lanigerum , is a serious worldwide apple pest. It is probably of North American origin and has been distributed to other [...] siphunculi are pore-like and the cauda is small. Eriosoma lanigerum overwinters as “naked” nymphs (without wax covering) on apple trees sheltering in cracks [...] sticky “wool” can be seen, mainly on spurs and branches. Many generations occur during the summer months, also on new growth. Water shoots arising from

Spider mites and other mites

a magnifying glass is needed to detect them. Plant mites are often found in colonies on the undersides of leaves, where they feed on the plant's sap. The [...] with the affected areas curling and twisting. This damage is caused by the mites feeding on the plant tissue, which disrupts the growth and development [...] a range of damage, depending on the species and the host plant. They often cause yellow-brown spots and discoloration on the leaves. Some species induce

Aphidius colemani

wings, and is black with dark brown legs. A female has a more pointed abdomen that is as long as the wings, is equipped with an ovipositor, and is black, with [...] colemani Aphidius colemani is a parasitic wasp used for biological pest control . This species belongs to the Braconidae family and is primarily known for its [...] horticultural environments. Aphidius colemani is widely used in the biological control of aphids . Aphidius colemani is used for the control of the following pests:

Green peach aphid

peach tree, is native, however it is now a pest with a world-wide distribution. The green peach aphid ( Myzus persicae subsp. persicae ) is a particularly [...] reproduction is asexual, the young aphids are born as developed nymphs. They immediately start to feed on plant sap and grow rapidly. When reproduction is sexual [...] persicae subsp. persicae ) is the most important vector of viral diseases. It can transmit at least 100 different viruses and is thus rightfully feared by

Bean seed fly

larvae burrow into the soil and feed on the seeds and roots of young plants. Larvae mainly attack seedlings by feeding on emerged roots and cotyledons. Plants [...] seed fly The adult bean seed fly ( Delia platura ) is a small, dark-colored fly measuring about 4-5 mm in length. It typically has a shiny black or dark [...] larvae, on the other hand, are small white maggots that can be found near the base of affected bean plants. You can recognise if your crop is affected

Glasshouse potato aphid

reproduction is asexual, the young aphids are born as developed nymphs. They immediately start to feed on plant sap and grow rapidly. When reproduction is sexual [...] deformations in the growing tip of the plant. Precisely where the plant is pierced is unimportant. The piercing of the lower leaves in the crop can cause deformed [...] abdomen that has pale to dark transverse bands. The body shape is similar to wingless females, but is 2.0-3.0 mm long. The glasshouse potato aphid manifests both

Large raspberry aphid

raspberry aphid, Amphorophora idaei, is the most important aphid species found on raspberries in Europe. It only feeds on raspberry. Damage symptoms Large [...] are high enough to reduce yield by direct feeding damage. The major problem is the spreading of various raspberry viruses by the aphids. Life cycle and [...] pale to yellowish green with long antennae, legs and siphunculi. The cauda is short and triangular. Overwintering eggs of the large raspberry aphid are

Plant Disease Management

What is biological disease control? Biological control of plant diseases is a method used to manage and reduce the impact of plant diseases by utilizing [...] key practices. Monitoring Regular monitoring of your plants is vital. Keep a close eye on their health and appearance. Look for any unusual signs, such [...] to common plant diseases. Healthy soil Maintaining healthy soil is crucial. Soil that is well-draining and nutrient-rich provides a solid foundation for

Hemp russet mite

freely (vagrant) on hemp/cannabis plants. Aculops cannabicola is host specific to hemp/cannabis ( Cannabis sativa ). It cannot survive on other plants. Damage [...] Damage symptoms Damage is caused by the mites sucking out the contents of plant cells. Hemp russet mite develops on the stems and petioles of the hemp [...] can cause stunting. When populations are large, the mites can also be found on the underside of leaves. This results in smaller leaf size and suppressed