• Two-spotted spider mite

  to the host plant by feeding on plant sap. They mainly occur on the underside of leaves where they pierce the cells and suck out the contents. The empty [...] to loss of the crop. The nymphs and adults also produce webs, and plants can get completely covered with such webs in which the mites live. The webbing and [...] become yellow, and in many plants the damage can also be seen on the upper surface of leaves as small yellow dots. The destruction of cells results in reduced

• Glasshouse potato aphid

  deformations in the growing tip of the plant. Precisely where the plant is pierced is unimportant. The piercing of the lower leaves in the crop can cause [...] length exceeds that of the body. The legs are also long, there are two distinctive dark green spots on the abdomen at the base of the cornicles. Alate (winged) [...] sometimes tomato. Damage symptoms When the glasshouse potato aphid (Aulacorthum solani) pierces the leaves or the fruit of sweet pepper it secretes a toxic

• Cucumber

  About The cucumber ( Cucumis sativus ) is a popular, extensively cultivated plant that belongs to the gourd family of Cucurbitaceae . The cucumber originates [...] particularly in India. The plant’s cultivation history goes back some 3000 years and it is now being produced on most continents. The cucumber plant is a [...] grows up trellises or other supporting frames. The plant supports itself with thin, spiraling tendrils. The cucumber plant has large leaves and it produces

• Tea

  belongs to the genus Camellia and family Camelliaceae. Tea plant is an economically important plantation crop extensively cultivated in the hills of N [...] and humid climate. The ideal temperature for growth is 20-30 0 C. It requires well distributed rainfall from 150 to 300cm throughout the year. Tea plantation [...] plantation is shade loving plant and grows vigorously under the shade trees. The original species, which produces tea, were C. assamica (Assam jats), C. sinensis

• 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. [...] 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 [...] fruits have not collapsed, the occurrence of larvae within the fruit makes them unmarketable. The punctures made by the oviposition by D. suzukii exposes fruits

• Radish

  to mature. The vegetable has a particular sharp or sometimes pungent flavour that derives from the chemical components that are produced by the plant, namely [...] About The radish ( Raphanus raphanistrum subsp. Sativus ) is an edible root vegetable that belongs to the Brassicaceae family. This plant was already [...] isothiocyanate. Radish is now produced and consumed in all parts of the world. The seeds are used to produce oil. Other varieties are developed for sprouting

• Pomegranate

  About The pomegranate ( Punica granatum ) is a small tree or deciduous shrub that belongs to the family of Lythraceae . The plant can grow up to between [...] feet) tall. The pomegranate was originally cultivated near modern-day Iran and spread to the Mediterranean region and northern India. The tree’s flowers [...] Some varieties that do not bear fruit are cultivated for their flowers. The pomegranate’s edible fruit is actually a berry and with regards to size sits

• Click beetles

  and feed on the roots of many plants. Damage symptoms The click beetles feed on the roots and bore into the base of plants. This can cause the plants to [...] fully grown the larvae pupate in the soil in summer. The adults appear about 4 weeks after pupation, but usually remain in the soil until the following spring [...] 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. The larvae (‘

• Peanut

  rainfed crop. The plant is short-statured and self-pollinated crop. The pegs are positively geotropic which enter the soil, later swells to become the pods. [...] root nodules fixes atmospheric nitrogen and improves the soil fertility. It is widely grown in the tropics and subtropics. It is classified as both oil [...] mainly for edible seeds. Oil content varies from 45 to 50%, depending on the varieties and agronomic conditions. Groundnut oil is edible oil used as refined

• Western flower thrips

  buds. Compared to the prepupa, the pupa has longer, more developed wing buds and longer antennae that are curved back over the head. The prepupal and pupal [...] causing the surrounding tissue to die. The resulting silver-grey patches on leaves and the black dots of their excreta indicate their presence in the crop [...] General The western flower thrips (Frankliniella occidentalis) is currently the most damaging thrips species in many greenhouse crops. The western flower