• Chafers

  smaller; about 13-15 mm long and reddish-brown in colour. The adult beetles fly in the evening, generally in June and July and land on trees to mate. During [...] the roots can lead to yellowing and wilting of plants. Damage can be severe on young plants and especially in grassland and turf. There, secondary damage [...] birds and small mammals digging for the grubs to eat them. Life cycle and appearance of Chafers Adult Amphimallon sostitialis are 14-18 mm long and yellowish

• Cabbage moth

  rhubarb as well as chrysanthemum and carnation. It is a species found in Europe, North Africa (Libya, Canary Islands), Japan and sub-tropical Asia, including [...] skeletonized leaves, holes and frass on leaves. The caterpillars destroy large numbers of leaves and their frass accumulates in the heart of cabbage, thereby [...] ed white-rimmed marking in the middle. The hindwings are light brown with a rather inconspicuous spot in the middle. Head and thorax are grey-brown with

• Tomato russet mite

  brown colour, and in serious cases they may snap. The fruit can also be affected, and when this happens in tomatoes, the skin becomes coarse and turns reddish [...] plants. Aculops lycopersici was detected for the first time in Australia and is a pest in tomatoes in all areas where they are grown. Other members of the plant [...] are slightly curled and acquire a silvery sheen on the underside. Later they become brown and brittle. Badly affected tomato leaves and stems lose their trichomes

• Cotton aphid

  cycle and appearance of Cotton aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses [...] occurs early enough in the season, the death of young plants. Retarded growth and defoliation reduce yield. Plant sap is rich in sugars, but has a low [...] honeydew, contaminating fruit and ornamental crops and rendering them unsuitable for market. At the same time, photosynthesis in the leaves is reduced, affecting

• Two-spotted spider mite

  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 spotting on the [...] underside of leaves where they pierce the cells and suck out the contents. The empty dead cells become yellow, and in many plants the damage can also be seen on [...] cells results in reduced photosynthesis, increased transpiration and reduced plant growth. As damage increases, whole leaves turn yellow, and as more cell

• Buckthorn-potato aphid

  have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction takes place by par [...] summer hosts and start to reproduce parthenogenetically. Both wingless and winged forms are produced parthenogenetically. They are usually found in the lower [...] lower parts of the plants and are not very mobile. In autumn, winged males and females are produced, which return to the primary host buckthorn where they

• American serpentine leaf miner

  cosmetic damage. In tropical and subtropical areas this can lead to burning in fruit such as tomato and melon. Loss of leaves also reduces yield. In full-grown [...] gypsophila, celery, sweet pepper, pea, bean and potato. In greenhouses, it is mainly found on gerbera and chrysanthemum. Today the insect is widespread [...] exit hole in the leaf with its mouth parts. After roughly one hour the larva crawls out of the leaf and falls to the ground. This occurs in the early morning

• Potato/tomato psyllid

  which results in delayed growth, weakness in the new leaves, chlorosis/reddening or purple colouration of the leaf bases and internodes, and poor-quality [...] purple-top disease in potatoes and permanent yellowing disease in tomatoes, both of which are very harmful to the affected crops. Lifecycle and appearance of [...] white or yellow lines and a distinctive white stripe on the abdomen. They are small in size, around 2.5 mm, and they live between 20 and 60 days.

• European red mite

  generations in one year. The European red mite overwinters in the egg stage; the “winter eggs” are laid in the wooden parts of the host plants in autumn. [...] (apple, pear, plum and cherry). However, it can attack a large scale of other woody plants and is occasionally a problem on roses and other ornamentals [...] yellowish red, and more slender and tapered near the hind end. The development from egg to adult goes faster at higher temperatures and takes approximately

• Aphids

  also mate in the autumn and lay eggs which overwinter. Where mating occurs and eggs are laid, the life cycle is termed holocyclic (complete). In greenhouses [...] Aphids are among the most harmful pests in greenhouse and field crops, causing plant stress, virus transmission and yield loss. Effective aphid control is [...] on stems, buds, flowers and fruit. Damage: Aphids can cause damage to leaves, stems, and flowers by piercing the plant tissue and sucking out the sap. This