• Green peach aphid

  glossy. Winged individuals have a brown-black head and thorax and a yellow-green to green or even reddish abdomen. They have a dark brown spot on the abdomen [...] native, however it is now a pest with a world-wide distribution. The green peach aphid ( Myzus persicae subsp. persicae ) is a particularly polyphagous [...] Plant sap is rich in sugars, but has a low protein content. Aphids therefore need to extract large quantities of sap to get sufficient protein. The excess

• Bacterial canker of tomato

  greenhouse structures Use a crop rotation in field crops of at least two years and alternate with a non-host crop Apply deep-ploughing to stimulate the decay [...] General Clavibacter is a quarantine organism in Europe, which means that strong efforts are used to prevent the bacterium from entering. When the occasional [...] the infected area, with a substantial buffer zone. Replanting can only take place after thorough disinfection has been proven to the authorities. Potato

• Fusarium head blight or scab

  General Fusarium is a group of soil-borne fungi with many different species. Fusarium is widespread and can infect a range of host crops. Many species are considered [...] ascospores. In general, most Fusarium specieshave a similar life cycle. Fusarium overwinters for many years in the soil and on crop residues of infected plants [...] (25-30 °C) and humid (RH above 85%) conditions increase chances of infection. How to prevent Fusarium head blight or scab Remove or destroy crop residues Choose

• Cottony cushion scale

  has well developed antennae and one pair of dusky wings, The adult ‘females’ produce 500 to 2000 bright-red, oblong eggs over a period of 2 to 3 months [...] considered to have originated in Australia. It was accidentally introduced to California in about 1868 and devastated the citrus industry there until a natural [...] instars migrate to the larger twigs and branches and eventually moult into the adult 'female'. There are two to four generations per year.

• Predatory mites

  crops, using a blower for dispersion is an available option. This approach proves particularly effective when a swift response is required due to a pest invading [...] your crop consultant for the frequency of releases. Video: How to use predatory mites How many predatory mites do I need? The dosage and frequency of predatory [...] persimilis . Over the years, we have further specialized in producing a big range of natural enemies and have several patents to our name. Our stability

• Grower Koen - Embracing biological crop protection in agriculture

  too quick to completely abandon traditional methods. He decided to find a balance between both approaches. This way of working allows him to gain experience [...] using biological crop protection . As a result, he acquires a lot of knowledge and is prepared to fully transition to biological crop protection when the [...] opportunities to adapt my farm to a future where chemical methods will gradually disappear. I believe that the agricultural sector has a natural interest

• Root and crown rot of strawberry

  stimulates disease development. How to prevent Root and crown rot of strawberry Avoid stress: Take runner tips at the right stage to avoid stress and make [...] Avoid overhead irrigation, since it seems to increase disease development Provide balanced nutrition Avoid damage to the plants by pest insects or plant handling [...] General New diseases in strawberry have been ascribed to Pestalotiopsis clavispora in the case of root and crown rot (of strawberry), first found in The

• Asian citrus psyllid

  when adults fly to a healthy plant and injects bacteria into it as they feed. The disease can kill a citrus tree in as little as five years, and there is [...] when disturbed or over-crowded. Development from egg to adult varied from 14 days at 28°C/82.4°F to 49 days at 15°C/59°F. New adults reach reproductive maturity [...] honeydew and a thread-like waxy substance so black sooty mold develops on the honeydew. Their feeding damages citrus by burning back new shoots or causing

• Click beetles

  skinned. They are up to 25 mm long and usually shiny yellowish brown or light brown with a darker head. Larval development takes 4 to 5 years. When fully grown [...] themselves into the air with a audible click. Hence their name. Their larvae are called wireworms and feed on the roots of many plants. Damage symptoms The [...] yellowish brown to 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

• Beneficial nematodes

  What are nematodes? Nematodes, commonly referred to as roundworms, are a diverse group of worms belonging to the phylum Nematoda. Nematodes are characterized [...] no residue How do nematodes work? Beneficial nematodes use a fascinating strategy for parasitizing and killing their host insects. Here's how they work: [...] bacteria, thousands of new nematodes emerge from the dead insect's body. These newly emerged nematodes are now ready to seek out new hosts and continue the