Cabbage looper

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 feed mainly [...] after 3 to 4 days. Since their legs are confined to the front and rear of the body, they move in a “looping” manner. They take 15 to 20 days to pass through [...] General Trichoplusia is not only a damaging pest in crucifers, their favourite host, it can also be found in crops such as tomato, pepper, some cucurbits

Greenhouse whitefly

and the excess is excreted as honeydew, with larger larvae expelling large quantities. The damage that whiteflies cause to a crop is the result of sucking [...] leaves can wilt and fall. Such leaf damage can in turn influence the development of fruit and lead to a reduction in yield. The honeydew deposited on fruit [...] the population is very large, feeding on plant sap can affect the physiology of the plant, as a result of which growth is retarded. In full sunlight, leaves

Nematodes significantly reduce Tuta larvae

wanted to offer safe and sustainable products to our customers,’ Zoboli continues. ‘It is better to use them when the larvae are small in order to maximize [...] greenhouses in the ‘90s for growing tomatoes using innovative production techniques. ‘Today, this allows us to offer a consistent quality that is safe and [...] per hectare. We prefer to apply them in the evening so that the leaves stay wet for longer and the nematodes have more time to reach their targets. We

Entonem keeps young orchids free from fungus gnats

pupae. ‘It is a good product that we apply to the crops using a Dosatron,’ explains Rogier Veldhuijs, assistant location manager in Assendelft. ‘In the past [...] perfectly.’ It is important to apply it correctly, he says. ‘It’s a careful balancing act; you need to keep the spray solution moving to ensure that the composition [...] microscope to check for the presence of nematodes. If I can see them this means that the spraying was successful.’ A high standard To prevent damage to the young

Citrus mealybug

effect is a reduction of photosynthesis and therefore the yield. Flowers and fruit often drop off. Plant sap is rich in sugars, but low in proteins. In order [...] photosynthesis in the leaves also reduces flower and fruit production. In ornamental crops, the mere presence of mealybugs is sufficient to render the product [...] length. They produce little wax, so that the light yellow to pink body is visible through its waxy covering. There is often a darker longitudinal stripe

Shore fly

instar larva is translucent white. Second instar larvae are brownish, less translucent and their body is cylindrical. The larvae are found in the top layer [...] species feed on rotting material. Shore flies are commonly found in greenhouses. Damage symptoms Shore flies ( Scatella tenuicosta) do not attack plants [...] plant diseases and can be a nuisance to greenhouse works by their sheer numbers. Frass deposited on leaves or flowers in ornamental crops, lettuce and herbs

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Blueberry

Integrated pest management in blueberry Integrated pest management ( IPM ) plays a vital role in blueberry crop protection , addressing the numerous pests [...] pests and diseases that can impact the health and productivity of these plants. IPM focuses on using a combination of methods to manage pest populations [...] pests, reducing their numbers and preventing them from causing significant damage to the crops. Blueberry diseases such as Botrytis , Phytophthora and other

Red palm weevil

but has spread to Africa and Europe with distribution through the Mediterranean since the 1980s. Damage symptoms It is very difficult to recognize the first [...] weevils to lay eggs deeper into the tissue. Additionally, this provides entry points for microbial agents that can further destroy living tissue. Due to the [...] grown larvae migrate to the periphery of the palms to build a solid elongated cocoon made of rolled-up palm fibres. After the cocoon is formed the larva enters

Cotton leafworm

pupation, caterpillars crawl to the ground and settle in the surface layers. The pupa is 15 to 20 mm long and reddish brown in colour. The forewings of the [...] littoralis) can lay up to 3,000 eggs. Each egg is roughly spherical, about 0.6 mm long and whitish yellow. They are laid in clusters of 20 to 500 pieces on lower [...] littoralis) is a highly polyphagous species feeding on plants of 40 families, containing 87 species of economic importance. It originates in Egypt, and is currently