• 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

• Nectarine

  commercial point of view, peaches and nectarines are sold as different products, but they are in fact the same species. Currently, the highest consumption of nectarines [...] color (between bright red and yellow ) and are generally smaller. It is a spontaneous variety of peach, so peaches and nectarines are genetically equivalent [...] a variety of the peach of the genus Prunus , it is a peach without hair or lint-free obtained by genetic mutation of the lint gene by the soft skin gene

• Macadamia nut borer

  into the young fruit. The larvae are cream to grey in colour with dark spots on the body and the head capsule is brown. The pupa is dark brown and (if pupation [...] larvae then feed on the inside of the husk. Damaged nuts are shed by the tree. Appearance and life cycle of Macadamia nut borer The eggs are laid singly on [...] fruit and are flat and oval with a pitted surface. Females can lay between 170 – 300 eggs in their lifetime. The eggs hatch between 7-12 days and the young

• Peach

  nectarine. The peach belongs to the genus Prunus (just like the cherry, apricot, almond and plum) and the rose family. Together with the almond, the peach also [...] ‘persica’ refers to the popularity of the tree in Persia when it was introduced there. The tree’s fruit is usually sweet and juicy and it is called peach [...] also belongs to the subgenus Amygdalus , because of its hard and corrugated seed shell. Commercially, peaches and nectarines are sold as different products

• Fusarium spp.

  branch off the tap root. F. oxysporum grows inside the roots towards the foot of the plant and enters the vascular system. Inside the vessels, the fungus produces [...] blocks the xylem and causes the wilting which is the main symptom of this Fusarium species. Higher up in the plant, the microconidia germinate and infect [...] causes foot and/or root rot of the infected host plant, and the disease may manifest as wilting, stunting and chlorosis or lesions on the stem and/or leaves

• Cotton aphid

  including the cucumber mosaic virus. Nymphs and adults extract nutrients from the plant and disturb the balance of growth hormones. As a result, the plant’s [...] if the infestation occurs early enough in the season, the death of young plants. Retarded growth and defoliation reduce yield. Plant sap is rich in sugars [...] honeydew, contaminating fruit and ornamental crops and rendering them unsuitable for market. At the same time, photosynthesis in the leaves is reduced, affecting

• Damping-off

  irreversibly. In potted plants the flower buds fall off. The side roots rot and very little of the root system survives. On the border between air and soil or [...] enable the spores to move through water. The zoospores are chemically drawn to the growing roots of young plants and move towards them through the soil water [...] lose their turgor or the leaf tips turn yellow, for example in flower bulbs. At first, the plants recover during the night, but later the plants wilt irreversibly

• Tomato leafminer

  ped mines in the leaves. Caterpillars prefer leaves and stems, but they may also occur underneath the crown of the fruit and even inside the fruit itself [...] behind the head. The prepupae of the tomato leaf miner ( Tuta absoluta ) are lighter than the feeding larvae and have a typical pink colouration on the dorsal [...] outside the leaf mines or fruit. Pupation takes place in the soil or on the surface of a leaf, in a curled leaf or in a mine. If they leave the mines they

• Cyclamen mite

  than the females and their hind legs are modified and used to transport pharate females. Eggs of the cyclamen mite are about half the size of the adult [...] mite. They are oval in form, smooth, transparent and twice as long as they are wide. Both ends are equally rounded. The larvae are opaque white and have only [...] mouth parts. The mites are mostly found within the flower buds, growing tips and young folded leaves, where the humidity is highest and they are protected

• Citrus mealybug

  problem in greenhouse horticulture, and in the tropics and sub-tropics on outdoor crops. The insect causes damage especially in fruit trees and ornamental [...] unfit for sale, and the reduced level of photosynthesis in the leaves also reduces flower and fruit production. In ornamental crops, the mere presence of [...] threads. Once the eggs are laid, the female shrivels up and dies. The first instar nymph develops from the egg. These first instar nymphs are known as ‘crawlers’