Citrus mealybug

effect is a reduction of photosynthesis and therefore the yield. Flowers and fruit often drop off. Plant sap is rich in sugars, but low in proteins. In order [...] photosynthesis in the leaves also reduces flower and fruit production. In ornamental crops, the mere presence of mealybugs is sufficient to render the product [...] length. They produce little wax, so that the light yellow to pink body is visible through its waxy covering. There is often a darker longitudinal stripe

Early blight

concentric rings that are caused by sporulation. Species may differ in specific symptoms. Damage symptoms Alternaria solani causes small green to dark brown [...] General The only known stage in all Alternaria species is the asexual stage. Conidia and mycelium overwinter in the soil and on crop residues and cause [...] of leaves, Alternaria solani can spread to the flowers (especially dangerous in crops for seed production) and to the crown. Sporulation of Alternaria occurs

Tomato leafminer

place in the soil or on the surface of a leaf, in a curled leaf or in a mine. If they leave the mines they build silk cocoons on the leaflets or in the soil [...] own tomatoes, belongs to the family of Gelechiidae . It is oligophagous, feeding mainly on Solanaceae species . The main host is tomato but it also feeds [...] nigrum. Damage symptoms The most distinctive symptoms of damage done by the tomato leaf miner ( Tuta absoluta) are the blotch-shaped mines in the leaves

Potato/tomato psyllid

Liberibacter is considered a quarantine pest. Damage symptoms The main direct damage, caused by potato psyllid nymphs when feeding, is known as ‘psyllid [...] solanacearum which is transmitted by potato psyllid amplifies the feeding damage and causes ‘zebra chip’ in potatoes Indirect damage causes the most harm [...] found to be responsible for serious crop damage, both directly and indirectly, the latter causing the greatest concern and proving difficult to control

Bacterial soft rot, bacterial stem rot

secondary pathogen in plants that are infected by other pathogens. The bacteria that causes black leg in potato is a different subspecies. How to prevent Bacterial [...] carotovora . It is one of the pectolytic bacteria causing extensive bacterial rots (bacterial soft rot, bacterial stem rot). Damage symptoms In tomato, Erwinia [...] carovora is very common, but does not often reach epidemic population densities. It can survive as epiphytic bacteria on various plants or in the soil in low

Cotton leafworm

pupation, caterpillars crawl to the ground and settle in the surface layers. The pupa is 15 to 20 mm long and reddish brown in colour. The forewings of the [...] littoralis) can lay up to 3,000 eggs. Each egg is roughly spherical, about 0.6 mm long and whitish yellow. They are laid in clusters of 20 to 500 pieces on lower [...] littoralis) is a highly polyphagous species feeding on plants of 40 families, containing 87 species of economic importance. It originates in Egypt, and is currently

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Trial results Onion fly and Fusarium wilt

(Delia antiqua) in onion Effective control of onion fly Capirel efficacy (% reduction compared to untreated control) against onion fly damage Capirel efficacy [...] apply. Only use products that are permitted in your country/state and crop. Always comply with the conditions specified in local product registrations [...] results with Trianum against Fusarium oxyporum in onion Trianum provides highly effective control of basal rot in onions during cultivation and storage Yield

Macrolophus pygmaeus

When the bug is present in a crop in large numbers, it can contribute substantially to the control of these pests. Although plant sap is necessary for [...] susceptible to damage. In tomato there may be fruit deformations during setting, and in gerbera, misshapen flowers may appear. The use of this bug in gerbera [...] for Macrolophus pygmaeus to develop well, it is insufficient for full development of a population. When females are only able to feed on plant sap, they lay

Beneficial nematodes

bodies, and they come in a variety of sizes, ranging from microscopic to several inches in length. Nematodes play various roles in ecosystems. Some are [...] for detailed information) In case of foliar application, the air relative humidity is another important factor to consider to maximize success (>75%) Ideally [...] What are nematodes? Nematodes, commonly referred to as roundworms, are a diverse group of worms belonging to the phylum Nematoda. Nematodes are characterized