• Tea mosquito bug

  stages which suck the sap from young leaves, tender stems and buds. The toxic saliva of the insect is injected to the plant tissues at the time of feeding [...] capable of laying about 500 eggs. The eggs are laid in all tender parts of the plant. The freshly hatched nymphs are look like spidery in general appearance [...] badly deformed and eventually fall off. The infested shoot also shows same such spots and subsequently drying of the shoots. Severely affected bushes look

• Cottony soft rot

  base and the roots, whereas the ascospores infect the above-ground plant parts. In greenhouses, usually only mycelium is produced by the germinating sclerotia [...] sclerotia. The fungus grows quite rapidly inside the plant and kills the host cells. On the infected plant tissue white, fluffy mycelium occurs with new [...] Damage symptoms The first symptoms of a cottony soft root ( Sclerotinia sclerotiorum ) infection are water-soaked lesions at the stem base. The plant above

• Tropicals

  tropical plants. Contrary to what most people expect, many of the tropical plants do not do well in direct sunlight and should be located in shadier environments [...] Plants’. In colder climates north of the equator, tropical plants are often grown as houseplants and set outside during the warm, sunny months. Commercially [...] About The definition of ‘Tropical Plants’, are plants that grow naturally in a tropical climate. Tropical plant is a typical north American term, whereas

• Crazy roots, hairy roots, crown gall

  crown gall The primary source of infection by Rhizobium rhizogenes has not yet been defined. The assumption is that the bacteria survive in the soil, but [...] caused by a change in the hormonal system of the plant resulting from the Rhizobium infection. Rhizobium rhizogenes puts a Ri-plasmid in the plant tissue and [...] Adjust the work order in greenhouses to fit with the hygiene protocol Disinfect the nutrient solution in order to prevent biofilm growth inside the irrigation

• Spotted Wing Drosophila

  unripe fruits. The larval development takes place in the fruit. The larvae pupate either fully or partly in the fruit, or outside the fruit on the ground. [...] Females have a strong saw-like ovipositor that is used to penetrate the skin of the host fruit and for laying the egg into the fruit. Eggs are white, 0 [...] oviposition, the respiration tubes extend from the fruit but are difficult to see. Larval feeding in the fruit leads to fruit tissue collapse. Even if the fruits

• Swirski-Mite Plus

  in the crop, not exposed to direct sunlight Sachets already have an exit hole Hold sachets by the cardboard strip at the top, to avoid damaging the predatory [...] larvae of whitefly . Crops Do not use in tomato. Mode of action Predatory mites multiply in the sachet and disperse into the crop over a period of several [...] ly or as soon as the first pest mites are detected in the crop. Use at least 4,000 sachets per ha and hang them evenly spaced in the crop. Release should

• Black leg of seedlings

  later the plants wilt irreversibly. In potted plants the flower buds fall off. The side roots rot and very little of the root system survives. On the border [...] older plants, the leaves lose their turgor or the leaf tips turn yellow, for example in flower bulbs. At first, the plants recover during the night, but later [...] and soil or substrate the plant turns brown. A typical symptom of a Pythium infection is the easy stripping of the skin from the root cortex with a finger

• Blight of pepper

  from the root to the foot, but direct infection of the foot also occurs. Exudates leaking from growing root tips promote germination and attract the zoospores [...] wind and rain causes the pathogen to be returned to the soil from infected plants. Dispersal in the soil happens via water, since the zoospores can readily [...] and crown rot in potted plants. The small roots die and brown-black lesions occur on the larger roots. Plants wilt and the crown leaves drop off. Life cycle

• Pierce's disease of grapevine

  along the margin or the tip from early to midsummer. The necrotic area spreads over the leaf from the margin and is marked by a chlorotic band. In the beginning [...] plums): In peach, the canopy of infected plants is compact and umbrella-like due to the shorter internodes. The foliage is denser and the leaves are a darker [...] substance, in the vessels. The bacteria, gum and tyloses block the vessels, causing the plants to wilt. Transport to different plant parts depends on the plant

• Tea spider mite

  causes damage to the tea plant which sucks the sap of leaves and occasionally on petioles. Red spider mite attacks the upper surface of the mature leaves [...] yellow orange and the larval period is followed by the first quiescent stage. The protonymph has four pairs of legs. Deutonymphs are like protonymphs but [...] to 50 eggs in their life cycle. The blood red colour eggs are laid all along the veins and mid-rib on upper surface of the leaves. Freshly hatched larva