Black root rot of cucurbits

plant pathogen infecting cucurbits, causing black root rot of cucurbits. Damage symptoms Phomopsis sclerotioides causes grey-black spots with a dark demarcation [...] it is hard to distinguish from other wilt diseases. The fungus can also cause black fruit rot. Life cycle and appearance of Black root rot of cucurbits

Spider mites and other mites

Broad mite damage Broad mites cause a distinct type of damage known as "bronzing", which can be confused with damage caused by plant viruses. This appears [...] , also known as flat mites, can cause a range of damage, depending on the species and the host plant. They often cause yellow-brown spots and discoloration [...] can rapidly infest greenhouse and field crops, feeding on plant cells and causing leaf discoloration, reduced photosynthesis and lower yields. Their fast

Aphids

species that cause damage in cultivated crops. Aphids feed on the sap of plants using their piercing-sucking mouthparts. They damage plants by causing stunting [...] Aphids are among the most harmful pests in greenhouse and field crops, causing plant stress, virus transmission and yield loss. Effective aphid control [...] may also be found on stems, buds, flowers and fruit. Damage: Aphids can cause damage to leaves, stems, and flowers by piercing the plant tissue and sucking

Buckthorn-potato aphid

Direct damage, caused by sucking of sap is rarely seen. Sometimes, large populations build up on potatoes or other hosts, which can cause growth retardation [...] retardation. Buckthorn- potato aphid does not cause plant deformation. The major problem in potatoes is the transmission of viruses. Life cycle and appearance

Sciarid flies

General Sciarid flies constitute the family of Sciaridae. The species that cause most damage to crops belong to the genera Bradysia and Lycoriella . Lycoriella [...] species are mainly found in commercial mushroom cultivation where they can cause enormous damage. Sciarid flies are usually found in damp, humid environments [...] and non-pathogenic micro-organisms for oviposition. Indirect damage is caused by the larvae and adults transferring fungal diseases, such as Fusarium

Plant Pests

beetles , and many others. These insects often feed on plant tissues, causing damage to leaves, flowers and fruits. They can also transmit diseases to [...] are tiny arachnids that pierce plant cells and suck out their contents, causing damage to leaves, flowers and fruits. Plant-parasitic nematodes Plant-parasitic

Cabbage leafroller

spectrana) is native to North-West Europe. It is a highly polyphagous species causing damage to field grown cabbage, apple, pear as well as maple, popular, spruce [...] In chrysanthemum too, this species is an increasing problem, and it has caused problems in sweet pepper since the mid 1980’s. In protected soft fruit [...] tip, while older caterpillars eat a hole in the shoot and hollow it out, causing the shoot or growing point to wilt and die. Life cycle and appearance of

Blueberry

them from causing significant damage to the crops. Blueberry diseases such as Botrytis , Phytophthora and other fungal pathogens can cause serious harm [...] By implementing IPM strategies, blueberry growers can mitigate the damage caused by pests and diseases, preserve the quality of their crops, and promote

Grey mould

foot rot complex, which causes rotting of the foot and may cause death of the plants. In cucumber and tomato the fungus causes lesions on pruning wounds

False spider mites

because their body is rather flat compared to other mites. Most species that cause damage to cultivated plants belong to the genera Brevipalpus and Tenuipalpus [...] Tenuipalpus . The most common species are Tenuipalpus pacificus , which causes damage to orchids and Brevipalpus phoenicis , Brevipalpus obovatus and Brevipalpus [...] Tenuipalpidae ) are usually found on the underside of leaves where they cause a brown, scabby discolouration spreading from both sides of the main vein