Chafers

symptoms Larval feeding on the roots can lead to yellowing and wilting of plants. Damage can be severe on young plants and especially in grassland and turf [...] reddish-brown in colour. The adult beetles fly in the evening, generally in June and July and land on trees to mate. During the night the females move to the ground [...] family. The larvae of both species live in the soil and feed on the roots of many plants. They are a serious pest that can cause substantial damage. The adults

Grey mould

ventilation in greenhouse crops Remove diseased plants or plant parts in a closed plastic bag In tomato: prune with a knife and not by hand, to avoid rugged [...] fungus in many environments. It survives in plant parts like bulbs and crop residues or as sclerotia (drought- and cold-resistant structures) in the soil [...] lesions. The symptoms on fruits, flowers and on various parts of potted plants often only become visible during and after cold storage. In lettuce, grey mould

Foot rot of cereals

damping off. This can result in seedling death and poor establishment. Surviving seedlings may develop a brown lesion around soil level. This can develop into [...] at the stem base. On older plants, infection can produce a true foot rot, where the stem base becomes brown and rotten, resulting in lodging and whiteheads [...] the presence of the pathogen in affected cereal crops. How to prevent foot rot of cereals Avoid following maize with wheat in rotations Bury soil-surface

Sciarid flies

colour. They are laid on the ground surface close to plant roots. The larvae can grow to 5 to 12 mm in length and 0.5 to 1.5 mm in diameter. They are legless [...] damage to crops belong to the genera Bradysia and Lycoriella . Lycoriella species are mainly found in commercial mushroom cultivation where they can cause [...] material and on algae and fungi present in the soil. They, however, can also feed on root hairs, rootlets, and tender root, stem and leaf tissue. Later instars

European red mite

However, it can attack a large scale of other woody plants and is occasionally a problem on roses and other ornamentals of the family Rosaceae grown in greenhouses [...] red mites on leaves of trees causes initially brown spots on the leaves and when these coalesce the leaves loose colour; this is often referred to as bronzing [...] heavy, leaves can drop. Life cycle and appearance of European red mite The European red mite feeds mainly on the undersides of leaves but moves to upper leaf

Plugging the plant propagation gap with Trianum

range (10-34 o C and pH 4-8.5) Gives protection to cuttings, seedlings and plug plants in propagation; can be used for all ornamental plant species T-22 [...] mixed with water and applied as a drench to propagation trays at a rate of 1.5 g/m 2 Trianum-G is incorporated in the compost at a rate of 0.75 kg/m 3 T [...] added to Vidi Parva , there are additional benefits of rapid rooting, increased root biomass and improved root architecture. For further advice on the use

Natupol Excel

Pay attention to advice for best practice under conditions with artificial light or in hot environments. Storage time after receipt To guarantee the best [...] the hive on the day of arrival. If necessary hives can be stored for maximum 1 day. Storage temperature 15–25°C. Storage conditions Keep hives in a well [...] flowers while at the same time collecting pollen to feed the brood. More workers emerge from the brood in the weeks after the introduction, increasing both

Western flower thrips

orange to almost black. Western flower thrips (Frankliniella occidentalis) usually pupate in the ground, although pupae can also be found on leaves, in flowers [...] rise to deformities such as the “pig-tail” fruit sometimes found in cucumber crops. In many ornamental crops, even very low numbers of thrips can cause [...] most damaging thrips species in many greenhouse crops. The western flower thrips (Frankliniella occidentalis) can be found on a wide variety of plants, including

Mycotal - Effective at lower temperatures

inactive, they will start to build up a population as soon as the conditions are favourable. This can become a serious threat to you crop in a later stage. Therefor [...] Therefor it’s crucial to eliminate pests in wintertime, when pest pressure is still low. In this way you start the new season in a clean way, giving your [...] temperatures drop Even in the midst of winter, pests can be present in your greenhouse. Although the pest reproduction might be low in colder conditions, or

Oleander aphid

aphid is cosmopolitan, and can be found in tropical to warm temperate regions throughout the world. It probably originated in the Mediterranean region, [...] sooty mould that grows on the honeydew. Growing tips can be deformed. Repeated heavy infestation throughout the year can lead to stunted plant growth. Life [...] of abdomen). Nymphs are similar to apterae in appearance except that they are smaller. Size ranges from 1.5 to 2.6 mm in length. Females are viviparous