• Corn rootworm

  present in many European countries, including Italy, where it is widespread in the maize-growing areas in the north. Maize is the only crop in which high [...] larval and adult feeding, although it is the former that causes the most extensive damage. The larvae feed on the rootlets and dig tunnels in the larger roots [...] adults may also feed on the kernels. This does not usually result in heavy yield losses, but it can facilitate the development of toxic fungi in the cob, with

• Shore fly

  commonly, often in the vicinity of water. They feed on algae. Other shore fly species have diverse feeding habits but the larvae of most species feed on rotting [...] flies are commonly found in greenhouses. Damage symptoms Shore flies ( Scatella tenuicosta) do not attack plants directly, as they feed on green algae. However [...] greenhouse works by their sheer numbers. Frass deposited on leaves or flowers in ornamental crops, lettuce and herbs also causes cosmetic damage, and sometimes

• Click beetles

  black. The eggs are laid in May or June in groups in the soil. They hatch about one month later and the larvae start to feed on roots. The larvae (‘wireworms’) [...] fully grown the larvae pupate in the soil in summer. The adults appear about 4 weeks after pupation, but usually remain in the soil until the following [...] Their larvae are called wireworms and feed on the roots of many plants. Damage symptoms The click beetles feed on the roots and bore into the base of

• Mycotal - Effective at lower temperatures

  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 [...] threat to you crop in a later stage. Therefore, it is crucial to eliminate pests in wintertime, when pest pressure is still low. In this way you start [...] the greenhouse later in the season. New research has shown that Mycotal can also be a powerful weapon against whiteflies and thrips in colder conditions.

• Chafers

  smaller; about 13-15 mm long and reddish-brown in colour. The adult beetles fly in the evening, generally in June and July and land on trees to mate. During [...] beetles of the Scarabaeidae 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 [...] 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

• Caterpillars

  highly destructive pests that feed on leaves, stems and fruits, causing serious damage to greenhouse and field crops. Their feeding reduces photosynthesis, weakens [...] brownish are greyish. Adult butterflies do not damage crops. Most of them feed on nectar. In contrast, the caterpillars have biting and chewing mouthparts and [...] can cause serious economic damage. Most species feed on leaves and young shoots, and their enormous feeding capacity can rapidly decimate a plant. Very small

• Root rot of carrot

  n of this disease in the rather acidic soils (of southwestern Norway). Spore germination was inhibited in nonsterile soil but not in similar soil that [...] walls and aiding in early signal transduction in host-pathogen interactions. Presence of umbelliferous plants: Inoculum can survive in perennial (umbelliferous) [...] increase in number and size until they merge, after which whole sections of the leaf will die off. The fungus appears to prefer older tissue. In the field

• Neoseiulus californicus

  californicus in sachets The predatory mite Neoseiulus californicus is also available in breeding sachets ( Spical-Plus , Spical Ulti-Mite ). In this case [...] predatory mites multiply in the sachet and disperse into the crop over a period of several weeks. Hang sachets in sheltered locations in the crop, avoid hanging [...] urticae) . The predatory mite can also feed on other food sources such as other mites, thrips or pollen. Feeding behaviour of Neoseiulus californicus Neoseiulus

• Pollination checklist tomato

  damage. You should therefore position the bumblebee hive in the coolest spot, or at least in the shade, particularly during the warmest part of the day [...] and make it possible to check the bumblebees' work. A single visit results in the transfer of enough pollen for pollination. Fruit setting takes place once [...] between 50% and 80%. A relative humidity of more than 80%-85% will result in pollen not being released and the bumblebees will become inactive. Below 50%

• Tarnished plant bug

  Adult Lygus lineolaris are true bugs that can grow up to 6.5 mm in length and are variable in colour; generally they are brown with yellow, orange or red accents [...] dead weeds, leaf litter and tree bark, and become active in early spring. They begin to feed on developing plant buds and shoots immediately, migrating [...] southern Mexico. It is one of the most damaging Hemiptera species, known to feed on almost all commercial crops. Lygus lineolaris boasts at least 385 different