• Black vine weevil

  hatching, but grow to approximately 12 mm. A larva is often curled into the typical C-shape which it assumes whenever it is disturbed. The body is covered with [...] can be found varies 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 [...] infested plant material. Because Otiorhynchus sulcatus is parthenogenetic a single female is enough to start a new population.

• Adalia bipunctata

  the two-spotted ladybug, is a species of a predatory beetle. As a natural enemy of aphids , Adalia bipunctata contributes to natural pest control, by preying [...] Adalia bipunctata 's feeding behaviour is characterized by its ability to rapidly reduce aphid numbers, making it a highly effective biological control agent [...] Aphidalia is especially designed for the control of aphids in trees. How to use Adalia bipunctata The predatory beetle Adalia bipunctata is available in a cotton

• Diamond back moth

  suggested to have its origin in Europe, South Africa or East Asia, but is now present wherever its cruciferous hosts exist and it is considered to be the most [...] species. It is highly migratory and wind-borne adults can travel long distances to invade crops in other regions. Damage symptoms The caterpillar is a surface [...] pupa is pinkish-white to pinkish-yellow and changes to brown before adult emergence. The adult of the diamond back moth (Plutella xylostella) is slender

• Corn rootworm

  virgifera virgifera ) is a chrysomelid beetle originating from North America, where it is regarded as the main pest of maize. Nowadays it is present in many [...] consequently it is susceptible to serious damage. Adults may also be found on Poaceae, Asteraceae, Fabaceae and Cucurbitaceae. Damage symptoms Damage is caused [...] susceptible to lodging, reducing its water and nutrient uptake capacity and leading to yield loss. When water supply is sufficient, the plants continue to grow

• Powdery mildew

  harder for the fungi to enter the leaves To reduce chances of powdery mildew in greenhouses, it is advised to first ventilate by only opening the windows [...] General Powdery mildew is a fungal disease that is caused by many different species of fungi such as Erysiphe, Podosphaera, Oïdium, Leveillula. Damage [...] fungus causing powdery mildew is extremely sensitive to water and ‘hides’ on the underside of the leaves. Therefore, this is where the colonies mostly occur

• Cabbage looper

  of the reasons why this plague can be serious is that the moth is able to disperse widely, reaching distances of up to 200 km. Damage symptoms The caterpillars [...] they move in a “looping” manner. They take 15 to 20 days to pass through 5 instars, changing colour from yellowish green to pale green with a white band [...] plants. The pupae have a green colour and then change to a coffee brown colour when close to adult emergence. Finally, the adult has a mottled grayish-brown

• Cabbage leafroller

  cabbage leafroller (Clepsis spectrana) is native to North-West Europe. It is a highly polyphagous species causing damage to field grown cabbage, apple, pear [...] flowers. It is 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 [...] opening bud to the growing tip, while older caterpillars eat a hole in the shoot and hollow it out, causing the shoot or growing point to wilt and die.

• Akanthomyces muscarius

  cultivation. Mycotal is safe and easy to use and can be applied using existing spraying equipment. It is compatible in the tank mix with a wide range of other [...] demanding supply chain requirements. Due to its specific mode of action, Mycotal is safe for beneficial insects, making it a powerful weapon in an integrated IPM [...] Lecanicillium muscarium ) is a species of beneficial fungi commonly used in biological pest control . This fungus is known for its effectiveness in controlling

• Glasshouse potato aphid

  with a brown head, a dark thorax and a dark abdomen that has pale to dark transverse bands. The body shape is similar to wingless females, but is 2.0-3 [...] sweet pepper it secretes a toxic substance, which leads to deformations in the growing tip of the plant. Precisely where the plant is pierced is unimportant [...] greenhouse potato aphid is rather squat, of medium size (1.8 - 3.0 mm long) and oval in shape. It has a light yellow-green to brown-green colour, and has

• Southern European marshland pyralid

  In gerbera, the flower buds may also be eaten. It has even been known for the caterpillars to inflict damage to the roots of crops cultivated in an e [...] which occurs about a week later, the young larva is visible within the egg. The full-grown caterpillars are 20 to 30 mm long and have a creamy white colour [...] marshland pyralid or European pepper moth (Duponchelia fovealis) is a polyphagous species feeding on a wide range of hosts from 38 plant families. They include