Potato/tomato psyllid

Overview It is a pest of huge economic importance, which initially affected potatoes and in recent years has become a problem for other Solanaceae crops [...] parts of Europe, and the import into Mexico, is difficult, since Candidatus Liberibacter is considered a quarantine pest. Damage symptoms The main direct [...] crops such as tomatoes, peppers, aubergines, and tobacco. The potato psyllid was considered a minor pest until it was found to be responsible for serious

Nematodes established solution for Nesidiocoris in France

crops from February onwards, which is really early. Nesidiocoris tenuis is a bug that has been a problem in France for a good 10 years. It causes significant [...] Additionally, as a macroorganism, there's no waiting period. These are major assets on our farm, which has been practising IPM for as long as it has existed [...] acts only on the head and avoids our Macrolophus . Capsanem is a valuable ally!’ Audrey Vignaud is Koppert’s technical head of the consultant for the South

Flies

species of the flies. Direct damage is the immediate result of larvae feeding on root hairs and tender roots as well as stem and leaf tissue and fruits. The [...] has recently developed into a major pest on soft fruits in Europe and North America. Sciarid flies and shore flies are mainly a problem in greenhouses. Their [...] prefer moist substrates that is rich in organic matter. Although they cause little direct damage to plants, they are often a problem due to their large number

Diglyphus isaea

Diglyphus isaea is a small parasitic wasp belonging to the family Eulophidae within the order Hymenoptera . It is widely recognized for its role as a biological [...] mine to pupate. There are three larval instars: the first is colourless and transparent, the second is yellow and semi transparent with a brown fat body [...] evidence that a parasitic wasp rather than a leaf miner has come from the mine. This is also seen in the pillars that remain visible as black spots in

Cannabis aphid

cannabis ; a.k.a. bhang aphid or hemp aphid) is a very new pest to North America. It was first seen on cuttings originating from Colorado in 2016 and is now [...] microscopic analysis of the head is required to distinguish them. The hop aphid is common in North American hops production; there have been unconfirmed reports [...] reports of Phorodon humuli developing on cannabis plants, as well. Damage symptoms The cannabis aphid is a sap sucker, like all aphids , and affected plants are

Shallot aphid

host plant for overwintering and there is no sexual stage in the life cycle. No eggs are produced. Myzus ascalonicus is cold hardy and overwinters in sheltered [...] General The shallot aphid, Myzus ascalonicus , is extremely polyphagous. It feeds on crops such as onions, shallots, strawberries, lettuce, brassicas and [...] The shallot aphid is cosmopolitan and widely spread in Europe. Damage symptoms Feeding of shallot aphid on strawberries invokes a strong host plant reaction

Corn rootworm

virgifera virgifera ) is a chrysomelid beetle originating from North America, where it is regarded as the main pest of maize. Nowadays it is present in many [...] instars. The pupa is hard to find in the soil, as this stage lasts only a few days. The adults, 5-6 mm long, are dark yellow in colour and there are three black [...] European countries, including Italy, where it is widespread in the maize-growing areas in the north. Maize is the only crop in which high population densities

Nematodes significantly reduce Tuta larvae

high-end supermarkets and we want to offer a constant, safe and sustainable product. As the use of chemicals is under pressure and biological protection [...] his crop. ‘This is the first year we have applied Steinernema feltiae and after the first cycle of three nematode treatments, we saw a reduction of Tuta [...] ‘After this result, we have kept spraying with nematodes every time there was a new wave of small larvae and the problem never grew big after that.’ Reduction

Cyclamen mite

General The cyclamen mite ( Phytonemus pallidus ) is a harmful strawberry pest as well as a common pest found in cyclamen, gerbera and other ornamentals [...] ) display a greater diversity of feeding habits than any other mite family. There are species that feed on fungi, algae, plants, as well as insect and [...] than usual. In cyclamen, the flowers are damaged and leaf growth is inhibited. In hedera, a mite attack can cause baldness in parts of the stem. Gerbera flowers

Citrus mealybug

filaments. Their sole task is to fertilize the females and as soon as a male emerges from its cocoon, it goes in search of a female. A fertilized female lays [...] little wax, so that the light yellow to pink body is visible through its waxy covering. There is often a darker longitudinal stripe running over the body [...] development. After the second instar, a male nymph forms a dark brown ‘prepupa’ from which a pupa rapidly develops, inside a white cottony cocoon. Females undergo