• Mealybugs and scales

  order Hemiptera (the true bugs ). Coccoidea are at first sight barely recognizable as insects. The females are wingless and immobile, and covered with a [...] of this type of pest. Among ornamental crops, ferns are particularly sensitive to soft scales, as are oleanders and orchids. Armoured scales, unlike mealybugs [...] Biological control of mealybugs and scales Mealybugs and scale insects are persistent pests that feed on plant sap, weakening crops and producing honeydew

• Large raspberry aphid

  and start to reproduce parthenogenetically. They are very mobile and drop from the plant when they are disturbed. Winged aphids usually appear in June and [...] raspberry. Damage symptoms Large raspberry aphids rarely reach populations that are high enough to reduce yield by direct feeding damage. The major problem is [...] their presence in the crop. Wingless females of the large raspberry aphid are 2.6-4.1 mm long, pale to yellowish green with long antennae, legs and siphunculi

• Shore fly

  the adult fly. The eggs are laid singly and are bean-shaped. A first instar larva is translucent white. Second instar larvae are brownish, less translucent [...] habits but the larvae of most species feed on rotting material. Shore flies are commonly found in greenhouses. Damage symptoms Shore flies ( Scatella tenuicosta) [...] translucent and their body is cylindrical. The larvae are found in the top layer of damp soil, where they also pupate. The adult shore fly is black, about 4 to

• Geranium aphid

  strawberries they reach their peak in June. Winged aphids are formed from May onwards and are responsible for spreading the infestation to other strawberry [...] they do not change their host plant for overwintering). Wingless females are green or yellow green, often shiny with pale siphunculi and 1.5-2.7 mm long

• Large blackberry aphid

  and start to reproduce parthenogenetically. They are very mobile and drop from the plant when they are disturbed. Winged aphids usually appear in June and [...] similar to the large raspberry aphid Amphorophora idaei . As both aphid species are host specific the host plant is the simplest method to distinguish these two [...] their presence in the crop. Wingless females of the large blackberry aphid are 2.6-4.1 mm long, pale to yellowish green with long antennae, legs and siphunculi

• Pepper weevil

  When they are already present on the crop, the best approach is to monitor them during the cooler parts of the day, as this is when they are most active [...] which is made up of more than 40,000 species. They have very hard bodies and are small in size. They prefer crops from the Solanaceae family, especially the [...] loss of fruit, whether they fall to the ground or contain holes where eggs are laid or adults were hatched. Meanwhile, the larvae develop in flower buds

• Leaf miners

  this family, only eleven are truly polyphagous. The species that cause most damage all belong to the genus Liriomyza and are very common in temperate regions [...] Biological control of leaf miners Leaf miners are damaging pests that tunnel through leaves, reducing photosynthesis and weakening plant growth. Their [...] crop production. Solutions for leaf miner control Learn more about What are leaf miners? Leaf miners belong to the order Diptera (the true flies ) and

• Municipality Venray: biological control of oak processionary caterpillars

  Entonem is that nematodes kill fewer other caterpillars , which means they are less harmful to biodiversity. This is something that is high up on the political [...] been 90% cleared. What is interesting is that avenues running east to west are typically free of oak processionary caterpillar, while those running north [...] more drift during spraying in those places, which means that the nematodes are more easily blown away. In some cases, we have to take curative action and

• Spider mites and other mites

  control Learn more about What are mites? Plant mites are a diverse group of small arthropods that feed on plant sap. They are found in a wide variety of habitats [...] spider mites are typically less than 1 millimeter in size, and range in color from pale yellow to green, brown, or red. They have eight legs and are closely [...] Plant mites generally thrive in warm and dry conditions, which is why they are often problematic in greenhouses and during hot, dry weather outdoors. Controlling

• Aphids

  control Learn more about What are aphids? Aphids are small, soft-bodied insects that belong to the superfamily Aphidoidea. There are over 4,000 species of aphids [...] by the following characteristics: Size and shape: Aphids are small, soft-bodied insects that are usually less than 6 mm in length. They have a pear-shaped [...] eggs that overwinter. The summer host plants are either herbaceous or woody, while the winter host plants are hardy, woody perennials. Aphids that do not