• Tobacco aphid

  head and thorax and a reddish abdomen. There is a dark brown spot on the abdomen and several transverse black bands across the body. The antennae are 0.7-1 [...] crops in both the United States and South America. The tobacco aphid ( Myzus persicae subsp. nicotianae ) is also encountered in a range of crops in greenhouses [...] chrysanthemum, and various pot plants and cut flower crops. Damage symptoms Nymphs and adults extract nutrients from the plant and disturb the balance of growth

• Neoseiulus californicus

  They are roughly 0.4 mm in length. The eggs are oval, transparent to white in colour and are deposited on the underside of the leaves. They are smaller [...] stages are the same as for other members of the Phytoseiidae family: egg, larva, proto- and deutonymph, and adult males and females. Adult mites are lighter [...] white colour. In many cases the colour of the food ingested shines through the skin and shows up as an X-shaped marking on the back. If the food supply has

• Amblyseius swirskii

  often in the axil of veins. They are oval, white and are approximately 0.14 mm in diameter. The larvae have six legs, are the same colour as the eggs, [...] and are only slightly larger. The larvae of Amblyseius swirskii do not need to feed. The nymphs are larger than the larvae, have eight legs, and are a [...] legs, are a translucent white in colour, and have a flat, elongated body. They are roughly 0.4 mm in length. Males are smaller than females. The mites

• Spidex Vital lives up to its promises

  Spidex Vital has the full 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 [...] experiences in using the new product are positive. ‘I’ve known Phytoseiulus my whole life,’ the cucumber grower begins. On his three-hectare farm in Pijnacker [...] work on tackling spider mites and hot-spots, the beneficials search more effectively and as they lay their eggs earlier, the population develops more rapidly

• Green peach aphid

  honeydew, contaminating fruit and ornamental crops and rendering them unsuitable for market. At the same time, photosynthesis in the leaves is reduced, affecting [...] dark brown spot on the abdomen and several transverse black bands across the body. Nymphs that develop into winged adults are often pink or red in colour. [...] different viruses and is thus rightfully feared by many growers. Nymphs and adults extract nutrients from the plant and disturb the balance of growth hormones

• Phytoseiulus persimilis

  spider mites. The quantity of prey consumed depends on the predator and prey populations, the sex and age of the predator, and the temperature and relative [...] deutonymph and adult, except for the resting period in the larval and nymphal stages. On plants, the oval eggs are usually deposited close to, or in a spider [...] During the protonymphal, deutonymphal and adult stages the mites feed almost continuously. Protonymphs and deutonymphs are similar to the adults in appearance

• Fall Armyworm

  symptoms The developing larvae eat different parts of the host plant, depending on the crop, the stage of crop development, and the age of the larvae. On [...] pinkish or light green and spherical, and are usually laid on the underside of the leaves. The larvae ( caterpillars ) are 30-40 mm long. They have six instars [...] surface of the last segment. Pupae are reddish brown and measure 13 to 17 mm in length. The eggs hatch after 3-5 days. Over the next 2 to 3 weeks, the larvae

• Beetles

  before reaching the adult stage. Larvae have biting mouthparts and mostly feed on the same food as the adults. The pupae do not make a cocoon and will already [...] orders and displays an enormous variety of form, size and habit. A number of species are a serious pest in crops or stored products. There are many useful [...] larvae and adults of beetles can cause damage to crops. The larvae of some species feed on growing tips and roots or chew and bore into stems, but in other

• Flies

  Sciarid flies and shore flies are mainly a problem in greenhouses. Their larvae live in the ground and prefer moist substrates that is rich in organic matter [...] mostly found in the soil. The spotted wing drosophila, Drosophila suzukii , has recently developed into a major pest on soft fruits in Europe and North America [...] Beneficial nematodes and predatory mites target fly larvae in the soil, while traps and attractants reduce adult populations and support monitoring. With

• Plant Disease Management

  preventing the disease from spreading further. Crop rotation Crop rotation is a fundamental strategy, which means avoiding planting the same crop in the same [...] disease cycles and reduces the buildup of pathogens in the soil. Disease-resistant varieties Another vital aspect of prevention is the use of disease-resistant [...] plant pathogens, which are microorganisms that cause diseases in plants. The primary goal of biological control is to reduce the damage caused by these