• Spidex Vital lives up to its promises

  the population develops more rapidly.’ A sense of calm on the farm The increased effectiveness of Spidex Vital is a major advantage for Sjaak van Dijk. ‘As [...] potential to develop into a game changer in spider mite control. It changes the rules of the game and is even more in control of spider mites . And the grower [...] times. This is always a critical and tense moment on cucumber farms like mine. And as spider mites can cause real problems in this type of crop, an even better

• Codling moth

  pomonella ) is a notorious, worldwide pest of apple and also occasionally of pear, quince, peach and other fruits. It is very common in Europe. Damage [...] cycle and appearance of Codling moth The adults have a wing span of 15-22 mm, blackish-brown forewings, suffused with ash-grey and a large, metallic, bronzy [...] spring. Larvae still in the apples at harvest can often be found in cracks in apple boxes or other places in the store.

• Black sigatoka disease

  turns brown and ultimately dies. In cases of severe infection leaves may die within a few weeks. Because of the lack of leaf tissues, fruit maturity is [...] leaf-spot of banana. Damage symptoms Black sigatoka (Mycosphaerella fijiensis ) first causes small, light yellow spots or streaks on leaves of about one [...] old. The symptoms run parallel to the veins. Within a few days, the spots become a few centimetres in size and turn brown with light grey centres. These

• Bacterial soft rot, bacterial stem rot

  can survive as epiphytic bacteria on various plants or in the soil in low densities. It has also been found in the gut of insects, possibly spreading from [...] wilt at the time of first harvest or after that. The pith disintegrates and the stem becomes hollow. Because of the bacterial growth in the pith, the stem [...] found as secondary pathogen in plants that are infected by other pathogens. The bacteria that causes black leg in potato is a different subspecies. How to

• Tobacco aphid

  and appearance of Tobacco aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. When re [...] ) probably evolved from the peach potato aphid in the Far East and is a key pest of tobacco crops in both the United States and South America. The tobacco [...] tobacco aphid ( Myzus persicae subsp. nicotianae ) is also encountered in a range of crops in greenhouses, such as sweet pepper, aubergine, chrysanthemum, and

• Anagyrus vladimiri

  an interval of 1-2 weeks. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy for your situation [...] is available in a bottle ( Citripar ). Remove the label from the bottle according to the instructions Hang the bottle in the crop, out of direct sunlight [...] leading to the death of the host. Anagyrus vladimiri also engages in host feeding, where the adult female wasp feeds on the body fluids of its mealybug hosts

• Tomato leaf miner

  damage. In (sub-)tropical areas this can lead to burning in fruit such as tomato and melon. Loss of leaves also reduces yield. In full-grown plants of fruiting [...] crop damage in many parts of the world, including North Africa, Europe and northern Asia. In warmer regions, the insect is found outdoors but in temperate [...] occurs in greenhouses. The tomato leaf miner has been found in greenhouses for decades, but has become a common pest since the 1960’s, particularly in sweet

• Cotton aphid

  appearance of Cotton aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses [...] balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation occurs early enough in the season [...] season, the death of young plants. Retarded growth and defoliation reduce yield. Plant sap is rich in sugars, but has a low protein content. Aphids therefore

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• Plant Disease Management

  control of plant diseases is a method used to manage and reduce the impact of plant diseases by utilizing beneficial organisms. This method relies on the use [...] Effective prevention of plant diseases involves several key practices. Monitoring Regular monitoring of your plants is vital. Keep a close eye on their health [...] and reduces the buildup of pathogens in the soil. Disease-resistant varieties Another vital aspect of prevention is the use of disease-resistant plant