• Broad mite

  January 1, 1970

  resembles the adult, but is slightly smaller and has only three pairs of legs. The emerging adult mite is roughly 0.2 mm long, oval and broad, and pale yellow [...] tissue, like the growing tips, young leaves and flower buds. The mechanism causing the deformation is not yet fully understood, possibly the mites, whilst [...] possess four pairs. The last pair of legs in both males and females is different to the others and not used for walking. After moulting to the third larval stage

• Aphidius matricariae

  January 1, 1970

  Aphid control with the parasitic wasp Aphidius matricariae Aphidius matricariae is a parasitic wasp belonging to the family Braconidae and is widely recognized [...] small wasp is a valuable natural enemy in both agricultural and horticultural settings. Aphidius matricariae is used for the control of the following pests: [...] effective between 15 and 25°C (59 and 77°F). The effectivity is reduced at temperatures above 28°C/82°F. Behaviour of the parasitic wasp Aphidius matricariae

• Oleander scale

  January 1, 1970

  Infestations on the leaves and stems may cause wilting and may reduce the photosynthetic area of the plants, leading to lower yield. Damage to fruit occurs [...] themselves to the plant and form a scale. Colonies mainly form on the underside of leaves. After 1 to 2 months, the female reaches adulthood and begins to [...] palms, oleander and citrus. Damage symptoms Scale infestation can be seen by the appearance of the scale armour on stems, leaves and fruits of hosts.

• Cannabis

  January 1, 1970

  or soil) is grown on a continuous basis. Cannabis belongs in the family Cannabaceae and may include three species, C. sativa , C. indica , and C. ruderalis [...] refers to the use of cannabis and its constituent cannabinoids, to treat disease or improve symptoms. Cannabis is used to reduce nausea and vomiting during [...] About Cannabis is an annual, dioecious, flowering herb. The leaves are palmately compound or digitate, with serrate leaflets. Cannabis is an annual plant

• Encarsia formosa

  January 1, 1970

  carefully inside the greenhouse Bend and tear off the strips opposite to the mounting hole Make sure not to touch the pupae during handling Suspend the cards in [...] offers the best chance of successful development. The egg is 0.08 mm long and 0.03 mm wide. About halfway through the parasitoid’s development, the host [...] in colour. The pupa of E. formosa is unique among the species of Encarsia , in that it is formed immediately beneath and in contact with the whitefly pupal

• Diglyphus isaea

  January 1, 1970

  colourless and transparent, the second is yellow and semi transparent with a brown fat body, and the third larval instar is blue-green. The full-grown larva [...] from the mine. This is also seen in the pillars that remain visible as black spots in the leaf. The adult is metallic green to black in colour and unlike [...] Diglyphus isaea is available in a bottle ( Miglyphus ). Release parasitic wasps between the leaves of the crop in the morning or in the evening The dosage of

• Citrus mealybug

  January 1, 1970

  inflict damage on the crop in various ways: Nymphs and females extract the sap from the plant, stunting growth and causing deformation and / or yellowing [...] defoliation. The overall effect is a reduction of photosynthesis and therefore the yield. Flowers and fruit often drop off. Plant sap is rich in sugars [...] greenhouse horticulture, and in the tropics and sub-tropics on outdoor crops. The insect causes damage especially in fruit trees and ornamental crops, particularly

• Aphelinus abdominalis

  January 1, 1970

  examine it briefly with the tips of the antennae. She turns herself around, curls up the wing tips, and will try to pierce the aphid in the abdomen with her long [...] Make sure the material remains dry and at its introduction site for a few days The dosage of Aphilin depends on climate, crop and aphid density and should [...] feeding while the larger individuals are parasitized. The control of the aphids is due to host feeding and parasitization in roughly equal measure. Life cycle

• Sciarid flies

  January 1, 1970

  damage is the immediate result of larvae feeding on the roots. The larvae feed mainly on decaying plant material and on algae and fungi present in the soil [...] cycle and appearance of Sciarid flies The life cycle of sciarid flies has the following stages: egg, four larval instars, a pupal instar, and the adult [...] roots. The larvae can grow to 5 to 12 mm in length and 0.5 to 1.5 mm in diameter. They are legless and have a conspicuous black head. The head is equipped

• Western flower thrips

  January 1, 1970

  pupa, and finally the adult insect. The eggs of the western flower thrips (Frankliniella occidentalis) are laid in leaves, flower petals and in the soft [...] Compared to the prepupa, the pupa has longer, more developed wing buds and longer antennae that are curved back over the head. The prepupal and pupal instars [...] cells of the surface tissues and sucking out their contents, causing the surrounding tissue to die. The resulting silver-grey patches on leaves and the black