Tarnished plant bug

General The lygus bug (or tarnished plant bug) is native to North America, and it is especially common across the eastern half of the continent, from northern [...] plants develop multiple crowns; Transmission of diseases, such as soft rot and ring rot. Life cycle and appearance of Tarnished plant bug Adult Lygus lineolaris [...] northern Canada to southern Mexico. It is one of the most damaging Hemiptera species, known to feed on almost all commercial crops. Lygus lineolaris boasts

Pepino mosaic virus

– which isolate of which strain – that causes the infection is one them. The moment in the crop cycle when the infection takes place is another factor that [...] symptoms The impact of a PepMV infection for the tomato grower is variable. Several factors contribute to this variability. The genetic identity of the virus [...] Europe, the Chilean strain (CH2) is dominant and present in 90% of the infections. If more strains are found in case of infection, the infection is usually

Common asparagus beetle

appearance of Common asparagus beetle The life cycle of the asparagus beetle has the following stages: egg, 4 larval instars, a pupal instar and the adult beetle [...] on the leaves of asparagus. As the larvae feed, they secrete a blackish fluid, consisting of faecal material, which may contaminate the plant. Life cycle [...] General The common asparagus beetle ( Crioceris asparagi ) is a major, host-specific pest of asparagus in most asparagus producing regions of the world.

Shore fly

flies of the genus Scatella are a common greenhouse pest found throughout the United States, Canada and northern Mexico. In Europe and Asia, the species [...] Fusarium , Pythium , and other root diseases. Life cycle and appearance of the Shore fly Adult Scatella shore flies are 4–5mm long with large eyes, thick bodies [...] soil, pots, benches, and other surfaces and the female disperses her tiny (0.1 mm) eggs on the surface of the plant growing medium. Short, leathery, tra

Amblyseius andersoni

Predatory mites are usually found on the lower surface of the leaves, often in the corner of the main vein and lateral veins. It is not possible to distinguish [...] life cycle of Amblyseius andersoni consists of egg, larva, protonymph, deutonymph, and adult. Eggs are laid on the underside of leaves, often in the axil of [...] Sachets already have an exit hole. Hold sachets by the cardboard strip at the top, to avoid damaging the predatory mites. The dosage of Anso-Mite Plus depends

Cottony soft rot

infects the stem base and the roots, whereas the ascospores infect the above-ground plant parts. In greenhouses, usually only mycelium is produced by the germinating [...] sclerotia. The fungus also infects seeds and tubers, thereby creating a source of infection for the next crop. The dispersal to neighbouring plants is by mycelial [...] as cottony soft root, is a plant pathogenic fungus. It has a very wide range of host plants. Damage symptoms The first symptoms of a cottony soft root (

Crane flies

General The larvae of crane flies , called leatherjackets, live in the soil and feed on roots and shoots (which they pull into the ground of mainly grasses [...] burrows of the larvae might also be visible. Secondary damage may come from birds and rodents feeding on larvae and digging up turf. Life cycle and appearance [...] After adults emerge, part of the pupal case can be found sticking out above the soil surface. Adult common crane flies emerge from the soil in late summer to

Potato/tomato psyllid

latter causing the greatest concern and proving difficult to control. In light of this, the export of fruit from susceptible crops to some parts of Europe, and [...] disease in tomatoes, both of which are very harmful to the affected crops. Lifecycle and appearance of the potato/tomato psyllid The eggs are egg-shaped with [...] and the import into Mexico, is difficult, since Candidatus Liberibacter is considered a quarantine pest. Damage symptoms The main direct damage, caused

Shore fly

particularly of young cuttings, can be retarded. Life cycle and appearance of Shore fly The life cycle of the shore fly ( Scatella tenuicosta ) has the following [...] translucent and their body is cylindrical. The larvae are found in the top layer of damp soil, where they also pupate. The adult shore fly is black, about 4 to [...] and stout with short antennae and short legs. The head of the adult has a pair of conspicuous eyes. The wings have grey-brown patches. Although shore flies

Fusarium wilt

inside the vessel system of the host plant and spreads upwards inside the plants. The other species are dispersed upwards on the outside of the plant. [...] Fusarium oxysporum is the species causing vascular wilt. First the leaves turn yellow and wilt, mostly on one side of the plant. Finally, the whole plant wilts [...] produce ascospores. The Fusarium oxysporum life cycle, is similar to that of most Fusarium species. Fusarium overwinters for many years in the soil and on crop