• Encarsia formosa

  natural enemy for farmers and gardeners aiming to reduce the reliance on chemical pesticides. Encarsia formosa is used for the control of the following pests: [...] Koppert products for advice on the best strategy for your situation. Best conditions for Encarsia formosa The parasitic wasp Encarsia formosa is most effective [...] inside the whitefly nymphs, which are then consumed from the inside out by the developing larvae. The larvae feed on the internal tissues of the host, leading

• La Hacienda Fresh increases crop profitability thanks to biological control

  on the quantity and quality of its fruits and the time in which they can be produced and harvested, the price of the fruit in the market and the production [...] also in the number of productive weeks and, therefore, in the profitability of the business. The implementation of a biological control program is one of [...] globally, with the United States, Canada and the United Kingdom being the main destinations for this important solanaceae. This context shows us the high value

• Potato aphid

  General The potato aphid ( Macrosiphum euphorbiae ) is of North American origin, but is these days distributed throughout the world. It is a highly polyphagous [...] from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation [...] 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 fungal moulds

• Cannabis aphid

  resembles the hop aphid ( Phorodon humuli ), to the point that microscopic analysis of the head is required to distinguish them. The hop aphid is common in [...] Damage symptoms The cannabis aphid is a sap sucker, like all aphids , and affected plants are damaged by the loss of this vital fluid. The following damage [...] dark green stripes running the length of the body. The winged forms have a dark head and thorax. Cannabis aphids have long antennae (1.1–2.2 mm) and between

• Phytophthora blight

  fungal growth on the leaves. The centre is grey-brown with a light-green edge. On the stem, elongated brown lesions occur, usually circling the stem. On potato [...] are formed that protrude through the stomata. Secondary infection is either by germinating sporangia or by zoospores produced in the sporangia. For germination [...] leaf wetness is required. Dispersal is by wind and rain causes the pathogen to be returned to the soil from infected plants. Dispersal in the soil happens

• Flies

  directly and indirectly. The type of damage depends on the species of the flies. Direct damage is the immediate result of larvae feeding on root hairs and [...] and leaf tissue and fruits. The lesions caused by feeding larvae provide invasion routes for various pathogenic fungi, for instance Fusarium sp. And Botrytis [...] fly larvae in the soil, while traps and attractants reduce adult populations and support monitoring. With Koppert’s biological solutions for flies, professional

• Citrus mealybug

  so that the light yellow to pink body is visible through its waxy covering. There is often a darker longitudinal stripe running over the body. The adult [...] search for a new feeding place and are capable of moving a reasonable distance over the plant. The male nymph attaches itself to the plant, whereas the females [...] 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

• Cottony soft rot

  base and the roots, whereas the ascospores infect the above-ground plant parts. In greenhouses, usually only mycelium is produced by the germinating sclerotia [...] sclerotia. The fungus also infects seeds and tubers, thereby creating a source of infection for the next crop. The dispersal to neighbouring plants is by mycelial [...] cottony soft rot. In the mycelium, big, dark sclerotia are formed. They can easily be seen with the naked eye and look like rat droppings. The symptoms may occur

• Aphidius colemani

  of the Aphidiidae. First the host is examined by drumming with the antennae. This gives the wasp the information about whether the aphid is the right species [...] Aphidius colemani is widely used in the biological control of aphids . Aphidius colemani is used for the control of the following pests: Cotton aphid ( Aphis [...] products for advice on the best strategy for your situation. Best conditions for use of Aphidius colemani The parasitic wasp Aphidius colemani is most effective

• Buckthorn-potato aphid

  barely exceed half the body length. The aphids overwinter as eggs on buckthorn. After emerging in spring, the aphids mainly feed on the underside of leaves [...] Buckthorn- potato aphid does not cause plant deformation. The major problem in potatoes is the transmission of viruses. Life cycle and appearance of Bu [...] their presence in the crop. Wingless females of the buckthorn- potato aphid are 1.1-2.4 mm long and bright pale green to yellowish green. The antenna are relatively