• Tomato leaf miner

  that emerges from its tunnel just prior to pupating, is known as a prepupa. This stage lasts only a few hours. [...] plants of fruiting vegetable crops, however, a considerable quantity of foliage can get damaged before the harvest is affected. The older larvae make wider tunnels [...] except with ornamental crops, this is usually of less significance. Seedlings and young plants can be completely destroyed as a result of the direct damage caused

• Circular scale

  mm in diameter with a slightly raised, sub-central point which is sometimes pale. When the scale is lifted, the insect beneath is yellow and up to 1.7 [...] General The circular scale, Chrysomphalus aonidum is a tropical species, native to the Oriental region but it has been dispersed widely in tropical and [...] 7 mm long. The adult male is 0.7 mm long and has a single pair of wings. First-instar nymphs are 0.3 mm long and have legs, but soon settle to form circular

• Long-tailed mealybug

  defoliation. The overall effect is a reduction of photosynthesis and therefore the yield. Flowers and fruit often drop off. Plant sap is rich in sugars, but low [...] l regions, but these days it is widespread throughout the world. The range of host plants of Pseudococcus longispinus is less extensive than that of the [...] ornamental crops, the mere presence of mealybugs is sufficient to render the product unfit for sale. A very small population can thus cause considerable

• Tomato russet mite

  Australia and is a pest in tomatoes in all areas where they are grown. Other members of the plant family Solanaceae may be affected to a lesser extent [...] The first nymphal stage is a transparent white colour and about 0.1 mm long. They usually develop to the 2nd stage within a day. All life stages look [...] Damage symptoms Damage is caused by the mites sucking out the contents of plant cells. Affected leaves are slightly curled and acquire a silvery sheen on the

• Oleander scale

  oleander scales are a greyish, dirty white or yellowy colour, round in shape, with a scale whose apex is off-centred. This scale resembles a miniature fried [...] fruits affects market value. In olives this is seen as green spots on purple fruits. Damage to foliage is particularly important in ornamentals . Heavy [...] fried egg with a diameter of 2 mm. The newly hatched crawlers are roughly 0.3 mm long. They quickly attach themselves to the plant and form a scale. Colonies

• Nematodes established solution for Nesidiocoris in France

  crops from February onwards, which is really early. Nesidiocoris tenuis is a bug that has been a problem in France for a good 10 years. It causes significant [...] acts only on the head and avoids our Macrolophus . Capsanem is a valuable ally!’ Audrey Vignaud is Koppert’s technical head of the consultant for the South [...] try to affect Macrolophus less. It is a delicate balance, but Capsanem means chemical treatment can be avoided, which is the objective of many companies.’

• May beetle

  the position of the setae in their final abdominal segment is needed, although this is not a method which works for all species. They can best be identified [...] the larvae are fully grown a kind of earthern cell is created in the ground in which they pupate. The adult beetles emerge a few weeks later but remain [...] Although this subfamily contains a number of species which cause damage to crops, the most representative genus is the Phyllophaga . Given the external

• Pea leaf miner

  fruiting vegetable crops, however, a considerable quantity of foliage can get damaged before the harvest is affected. The size of a leaf tunnel depends on the [...] that emerges from its tunnel just prior to pupating, is known as a prepupa. This stage lasts only a few hours. [...] occurs in a variety of vegetable and ornamental crops. It originates from South and Middle America and has subsequently spread via plant material. It is now

• Eggplant

  Solanum melongena ) is a specific species of nightshade and is widely produced for its tasty fruit. In North America and Australia the fruit is called eggplant [...] in South Africa and Southeast Asia it is known as brinjal. The eggplant is a member of the genus Solanum and is thus related to the tomato and potato. [...] Botanically speaking however, the eggplant is classified as a berry. The fruit contains many small and soft seeds. These seeds taste rather bitter, because

• American serpentine leaf miner

  pea, bean and potato. In greenhouses, it is mainly found on gerbera and chrysanthemum. Today the insect is widespread across the whole world. Damage symptoms [...] plants of fruiting vegetable crops, however, a considerable quantity of foliage can get damaged before the harvest is affected. The older larvae make wider tunnels [...] except with ornamental crops, this is usually of less significance. Seedlings and young plants can be completely destroyed as a result of the direct damage caused