Nutari

leaves by hand or with an Air(o)bug Large heaps of carrier material may cause leaf damage, so make sure the material is distributed as a thin, even layer [...] suitable for predatory mites . Precautions Application of this product can cause sensitization or allergic reactions, we therefore advise to take the necessary

Plant Disease Management

which are microorganisms that cause diseases in plants. The primary goal of biological control is to reduce the damage caused by these pathogens while minimizing [...] our food production systems. Understanding plant diseases Plant diseases, caused by various pathogens such as fungi, bacteria, and viruses, can wreak havoc

Bacterial canker of tomato

potatoes can be grown for one year after infection. Damage symptoms Clavibacter causes spots on stems, leaves and fruits. Leaves and shoots wilt. On the lower [...] but other than that the disease is difficult to distinguish from wilting caused by other pathogens. On potato tubers, first discolouration of the vessel

Tobacco whitefly

and has affected an extremely wide range of crops throughout the world. It causes damage in (sub-)tropical areas especially. The tobacco whitefly ( Bemisia [...] with larger larvae expelling large quantities. The damage that whiteflies cause to a crop is the result of sucking out the sap from the plant leaves and [...] alter their normal physiological processes. In some host plants, this can cause damage, including irregular ripening in tomatoes and sweet peppers, yellowing

Citrus mealybug

horticulture, and in the tropics and sub-tropics on outdoor crops. The insect causes damage especially in fruit trees and ornamental crops, particularly in pot [...] Nymphs and females extract the sap from the plant, stunting growth and causing deformation and / or yellowing of leaves, sometimes followed by defoliation [...] to render the product unfit for sale. A very small population can thus cause considerable economic damage. Life cycle and appearance of Citrus mealybug

Nutemia

leaves by hand or with an Air(o)bug Large heaps of carrier material may cause leaf damage, so make sure the material is distributed as a thin, even layer [...] suitable for predatory mites . Precautions Application of this product can cause sensitization or allergic reactions, we therefore advise to take the necessary

Lesser house fly

Damage symptoms While the lesser house fly and other Fannia spp. do not cause any direct damage to animals or buildings, they are considered a serious [...] large distances. Fannia flies have been confirmed to carry the viruses that cause Newcastle disease and hog cholera, protozoan parasites such as Cryptosporidium

Shore fly

microscopic algae, bacteria and other unicellular organisms, they do not cause any direct damage to plant production. However, they are considered a nuisance [...] their feces (as black flecks) on the foliage of ornamentals or food crops, causing cosmetic damage. Can develop quickly into dense swarms inside greenhouses

Long-tailed mealybug

Nymphs and females extract the sap from the plant, stunting growth and causing deformation and / or yellowing of leaves, sometimes followed by defoliation [...] to render the product unfit for sale. A very small population can thus cause considerable economic damage. Life cycle and appearance of long-tailed mealybug

Two-spotted spider mite

greenhouses and many outdoor crops. Spider mite damage Larvae, nymphs and adults cause damage to the host plant by feeding on plant sap. They mainly occur on the [...] They produce fine webbing over the infested area. Damage: Spider mites can cause damage to leaves by piercing the plant cells and sucking out the contents [...] yellowing, speckling, or browning of the leaves. Severe infestations can cause the leaves to dry up and fall off the plant. How to prevent spider mite