Glasshouse potato aphid

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 [...] length exceeds that of the body. The legs are also long, there are two distinctive dark green spots on the abdomen at the base of the cornicles. Alate (winged) [...] growth above with lumpy leaves and curled leaf margins. The immediate effects of piercing by the aphids are visible in lower leaves in the form of yellow

Mottled arum aphid

Wingless females of the mottled arum aphid are shiny whitish, yellowish or green with black cross bands behind the head, broken along the midline, and a large [...] before reaching adulthood. With each moult they shed white skin, betraying their presence in the crop. Reproduction of the mottled arum aphid is entirely [...] greatly reduce plant vigour and kill the plant through sucking of plant sap. However, also at lower densities the aphids can damage plants because they

Pear psylla

They have white, longitudinal stripes on the back of the thorax. Their forewings are clear with dark veins. The eggs are oval, approximately 0.3 mm long [...] generation nymphs turn brown and die. Feeding later in the season may affect the harvest of the next year by weakening or killing fruit buds. Pear psyllas [...] orange in colour. The nymphs are initially yellowish with clearly visible purplish-red eyes. Later instars are purplish to reddish brown with whitish longitudinal

Drososan

using the enclosed hook The most effective place to hang the traps is in the shade along the sides of the plot, in the hedge (if available) and in the crop [...] If the crop is low, make sure the traps hang at least one metre above the ground. In taller crops, the traps can be placed in the crop Protect the traps [...] action The Drososan trap needs to be used in combination with Fruit Fly Attractant. The spotted wing drosophila are attracted to the trap by the liquid

Yellow rose aphid

Nymphs and adults extract nutrients from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to [...] quantities of sap to get sufficient protein. The excess sugar is secreted in the form of honeydew, making the crop and its fruit sticky. Black sooty moulds [...] ng fruit and ornamental crops. At the same time, photosynthesis in the leaves is reduced, affecting production. The yellow rose aphid is also a vector

Cactus mealybug

their name from the fact that the body of the females from the third nymphal instar onwards are covered with a white waxy material in the form of powder [...] flowers. Depending on the host plant species, infestations with cactus mealybug cause discoloration of the plants and later necrosis of the tissue. Plant de [...] greenhouse-grown succulents around the world as it was probably distributed by the trade in ornamental plants. Damage symptoms The cactus mealybug usually infests

Blueberry aphid

adulthood. With each moult they shed white skin, betraying their presence in the crop. Wingless females of the blueberry aphid are pale yellow-green. The siphunculi [...] cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction takes place by parthenogenesis, with unfertilized [...] Blueberry aphids overwinter as eggs on blueberry bushes. The fundatrices (founding mothers) emerging from the eggs produce wingless and winged parthenogenic females

Dwarf bunt

sporidia infect the wheat seedlings even before emergence and the fungi grow inside the plants to the growing tip. The fungi grow between the plant cells and [...] heads. The glumes are opened either on some or on all spikelets, showing the bunt (smut spore) they contain, which is larger than a normal kernel. The bunt [...] on seed. The soil-borne teliospores are the main source of primary infection. The soil-borne teliospores may survive in soil without suitable host for

Moskisan

yellow bucket Fix the transparent top to the funnel with a twist action lining up the slots Attach the hanging hook to the transparent top Application Place [...] reducing the number of eggs laid by famles as they fail to mate. Presentation One trap with hanging hook. Preparation Place the Pherodis lure in the yellow [...] Moskisan traps during the entire period the trees can be exposed to the Mediterranean fruit fly. Combined use Use in combination with Pherodis Ceratitis capitata

Municipality Doetinchem: Entonem nematodes managing oak processionary caterpillar

9000 solitary oak trees withing this municipality. In 2020 the level of infestation with the oak processionary caterpillar within the built-up area was so [...] oak trees in the forests and plantations around Doetinchem. Marc van Rijswijk is the spokesman for Buha, the implementing organization for the Municipality [...] that the use of nematodes helps to reduce the level of infestation. ‘By using Entonem and extracting the nests as a curative measure, we can keep the situation