• Cannabis aphid

  North America. It was first seen on cuttings originating from Colorado in 2016 and is now widespread throughout that state and Oregon. Its range also includes [...] General Although it was first described in 1860, the cannabis aphid ( Phorodon cannabis ; a.k.a. bhang aphid or hemp aphid) is a very new pest to North [...] to the point that microscopic analysis of the head is required to distinguish them. The hop aphid is common in North American hops production; there have

• Using Capirel for healthy fruit orchards

  Michel explains. ‘It’s easy to dilute in this way.’ Michel says it is easy to apply if the ground is already wet. He waits until it rains. ‘I then apply [...] results are good. There is only a little damage but it’s not excessive,’ he confirms. ‘We do it every year to avoid pest invasion so it is fully included in [...] pressure.’ Michel reports that the benefit of using Capirel nematodes is that it can also be used as a preventive treatment in the autumn to reduce the

• Entonem keeps young orchids free from fungus gnats

  since Koppert changed the formulation, it works perfectly.’ It is important to apply it correctly, he says. ‘It’s a careful balancing act; you need to keep [...] biological approach is clear to see: the company uses ten different beneficials for its two sites in Heemskerk, the Netherlands and its third location in [...] them is Entonem , the beneficial nematode Steinernema feltiae . Floricultura uses it to tackle fungus gnats ( sciarid flies ) and thrips pupae. ‘It is a

• Encarsia formosa

  parasitic wasp is fully grown, it eats a round hole in the pupal cuticle. It takes several hours before the wasp frees itself from its case. The female [...] leading to its death and thereby contributing to the reduction of whitefly numbers. Encarsia formosa is highly adaptable and can adjust its parasitism [...] Encarsia , in that it is formed immediately beneath and in contact with the whitefly pupal cuticle, whereas in other Encarsia species it can be seen clearly

• Nematodes established solution for Nesidiocoris in France

  February onwards, which is really early. Nesidiocoris tenuis is a bug that has been a problem in France for a good 10 years. It causes significant damage [...] Nesidiocoris because it is very strong in this sector,’ says co-manager at SCEA, Bélinda Gaillet. ‘Capsanem appealed to us due to its biological protection [...] treatment robot, which is used by blocking the lower nozzles so that it acts only on the head and avoids our Macrolophus . Capsanem is a valuable ally!’ Audrey

• Tomato leaf miner

  Europe and northern Asia. In warmer regions, the insect is found outdoors but in temperate regions it only occurs in greenhouses. The tomato leaf miner has [...] larva hatches from the egg, it begins to eat into the leaf at once, tunnelling down into the mesophyll tissue where damage is caused by extensive mines, [...] underside. The late third instar larva, that emerges from its tunnel just prior to pupating, is known as a prepupa. This stage lasts only a few hours.

• Bacterial canker of tomato

  tubers. This discolouration is round, hence the name ring rot. Life cycle and appearance of Bacterial canker of tomato Clavibacter is seed-borne and tuber-borne [...] tuber-borne and primary infection is mostly from infected propagation material. It spreads to other seedlings by touching the plants in greenhouse crops and by [...] General Clavibacter is a quarantine organism in Europe, which means that strong efforts are used to prevent the bacterium from entering. When the occasional

• Gummy stem blight

  General Mycosphaerella cucumis (Didymella bryoniae) is a fungal plant pathogen that causes gummy stem blight. Damage symptoms Mycosphaerella cucumis in [...] round and extending lesions may occur. In cucumber, the most important symptom is internal fruit rot, which can only be recognized from the outside by the small [...] ascospores and asexual conida simultaneously. The spores germinate when free water is present on the plant, at high relative humidity (RH) and on wounds. Leaves

• Red palm weevil

  rolled-up palm fibres. After the cocoon is formed the larva enters a pre-pupal stage, its body contracts and it does not crawl any more. The future adult [...] distribution through the Mediterranean since the 1980s. Damage symptoms It is very difficult to recognize the first signs of red palm weevil ( Rhynchophorus [...] proportion of fibres. Their feeding causes deterioration of this tissue, making it easier for adult weevils to lay eggs deeper into the tissue. Additionally

• Trichoderma harzianum

  transplanted crops it is possible to start applications from propagation. When the pathogen pressure is potentially high, the crop is sensible to soil diseases [...] harzianum T-22 is a species of beneficial fungus commonly used in agriculture and horticulture for its various beneficial properties. This fungus is known for [...] practices has various advantages: It controls different soil-borne diseases It strengthens the plant and promotes growth It improves root system development