Carrot

comes from Persia and was originally produced for its seeds and leaves. Carrots can be classified as hardy biennials and are grown as annuals. Carrots can [...] is a root vegetable and comes in a variety of colours, ranging from the regular orange to black and purple, but also red, yellow and white. The carrots [...] carrots which are produced nowadays derive from the wild carrot, Daucus carota , indigenous to Europe and southwestern Asia. The carrot plant presumably comes

Oleander scale

of the scale armour on stems, leaves and fruits of hosts. Infestations on the leaves and stems may cause wilting and may reduce the photosynthetic area of [...] infestation can lead to yellowing, leaf and shoot malformation or shrivelling and plant death. Life cycle and appearance of Oleander scale Adult oleander [...] belongs to the Coccoidea and has an almost worldwide distribution. Host plants include olive, apple, mango, palms, oleander and citrus. Damage symptoms

Rose aphid

s with rose aphids retard the growth of buds and new shoots. Foliage and flowers are often disfigured and contaminated with sticky honeydew on which black [...] develop. Life cycle and appearance of Rose aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in [...] 1.7-3.6 mm long and green or deep pink to red-brown. The antennae and sometimes the head is dark in colour. The siphunculi are black and bent outwards.

Strawberry aphid

a cosmopolitan distribution and is the most important aphid pest of strawberries. It can cause direct damage by feeding and transmits viruses. Damage symptoms [...] from the plant, which reduces the yield and quality of fruit. The leaves do not become distorted but leaves and fruits quickly become sticky due to the [...] continuously producing new generations of females. The strawberry aphids overwinter as parthenogenetic forms. There is no sexual stage and no eggs are laid

Hemp russet mite

smaller leaf size and suppressed bud growth leading to a reduction in the number of buds and dwarfed buds. This damage can reduce yield and quality. Other [...] leaves and upward curling of leaf edges. Life cycle and appearance of Hemp russet mite All life stages of the hemp russet mite are extremely small and difficult [...] Aculops cannabicola ) belongs to the family Eriophyidae (gall and rust mites). It does not produce galls but lives freely (vagrant) on hemp/cannabis plants

Glume blotch

pycnidia and perithecia occur. Perithecia are also formed on dead glumes and stems. In case of severe infection , the heads of wheat become black and the kernels [...] (Phaeosphaeria nodorum) is a fungal pathogen of wheat , barley and ryethat induces yield and quality losses. Damage symptoms Phaeosphaeria nodorum or Septoria [...] kernels become shrivelled and deformed. When germinating seedlings are infected, they shrivel. Life cycle and appearance of Glume blotch Phaeosphaeria

Pear

central and eastern Europe and southwest Asia. The pear tree belongs to the family of Rosaceae and sub family of Pomoideae , together with the apple and quince [...] cm or 1 inch in diameter) and produces a pyriform, fleshy fruit. Pear trees can grow as tall as 9 metres and are able to produce fruit for around 20 years [...] which are grown in Asia, Europe and northern Africa. The European or common pear is a perennial, deciduous tree and cultivated for its fruit. The tree

Boisduval scale

the tropics, and in greenhouses in more temperate climates. It is very polyphagous and can be a pest of orchids, palms, pineapples, bananas and many other [...] scales on upper and lower leaf surfaces, fruits, and stems of plants. On palms, Boisduval scales are normally found on the leaves and stems. Toxic saliva [...] exuvium. Adult females can produce up to 200 eggs and live up to seven months. Eggs hatch within five to seven days under the scale and become crawlers. The

Pear psylla

Europe and can inflict serious damage in pear orchards. Damage symptoms Pear psylla feeding leads to growth inhibition and malformation of leaves and fruits [...] shoots, leaves and developing fruits with a sticky black layer. Life cycle and appearance of Pear psylla Adults pear psyllas are 2-3 mm long and orange red [...] become active in spring and start to feed on young leaves and flowers. Eggs are deposited in crevices of the bark of twigs and hatch after about 3 weeks

Brown soft scale

which can cover the leaves, flowers and fruit of the host and reduce photosynthesis and respiration. Life cycle and appearance of Brown soft scale The scale [...] papaya, etc.) and ornamentals such as schefflera, ficus, hibiscus, oleander, palms, ferns and orchids. Damage symptoms The scales produce enormous quantities [...] brown soft scale Coccus hesperidum is very common in tropical and sub-tropical regions and is also a common pest in greenhouses throughout the world. C