• Tomato russet mite

  January 1, 1970

  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

• American serpentine leaf miner

  January 1, 1970

  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

  January 1, 1970

  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.

• Whitefly

  January 1, 1970

  retarded. In full sunlight, leaves can wilt and drop. Such leaf damage can in turn influence the development of fruit and lead to a reduction in yield. By [...] pests in greenhouse and field crops, feeding on plant sap and transmitting harmful viruses. Their feeding weakens plants, causes leaf yellowing and leads [...] Parasitic wasps are key in reducing whitefly populations by parasitizing larvae and host feeding. Predatory mites and bugs feed on eggs and larvae of whiteflies

• Fall Armyworm

  January 1, 1970

  lay their eggs in clusters of 150-200 and can lay up to 2000 eggs in a lifetime. Eggs are white, pinkish or light green and spherical, and are usually laid [...] damage in appearance). Life cycle of the Fall Armyworm Adult moths are 20 to 25 mm long and have a wingspan of 32-38 mm. They are nocturnal and most active [...] reddish brown and measure 13 to 17 mm in length. The eggs hatch after 3-5 days. Over the next 2 to 3 weeks, the larvae pass through 5-6 stages and the pupal

• Two-spotted spider mite

  January 1, 1970

  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 [...] stages: egg, larva, protonymph, deutonymph, and adult. In the larval and nymphal stages, an active period and a resting period of roughly equal duration [...] 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

• Leaf miners

  January 1, 1970

  cosmetic damage. In (sub)tropical areas this can lead to burning in fruit such as tomato and melon. Loss of leaves also reduces yield. In full-grown plants [...] species in this family, only eleven are truly polyphagous. The species that cause most damage all belong to the genus Liriomyza and are very common in temperate [...] reducing photosynthesis and weakening plant growth. Their feeding patterns cause visible leaf damage, lower crop quality and can open the way for secondary

• Tomato leafminer

  January 1, 1970

  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 [...] blotch-shaped mines in the leaves. Caterpillars prefer leaves and stems, but they may also occur underneath the crown of the fruit and even inside the fruit [...] including potato, eggplant, capsicum pepper and tobacco as well as weeds such as Datura stramonium, Lycium chilense , and Solanum nigrum. Damage symptoms The most

• Cucumber

  January 1, 1970

  large leaves and it produces an elongated, cylindrical fruit that may become as long as 60 cm or 24 inches long and 10 cm or 3.9 inches in diameter. Cucumbers [...] from flowers and their seed develop within the fruit, therefore in botanical terms they are classified as berries. However, like tomatoes and squash, cucumbers [...] originates from South Asia, more particularly in India. The plant’s cultivation history goes back some 3000 years and it is now being produced on most continents

• Cyclamen mite

  January 1, 1970

  brittle and smaller than usual. In cyclamen, the flowers are damaged and leaf growth is inhibited. In hedera, a mite attack can cause baldness in parts of [...] flower buds, growing tips and young folded leaves, where the humidity is highest and they are protected from direct sunlight. In such spots, they are difficult [...] growth is arrested and the flower buds are so badly affected that they shrivel and die. Damaged strawberry leaves are wrinkled and irregularly folded.