Southern European marshland pyralid

conspicuous, as are the four dark dots behind the head capsule. There are 4 pairs of prolegs. Caterpillars are found in webs, preferably in damp, humid places [...] at night, but can sometimes be seen in the daytime. Eggs are laid singly or in groups of 5 to 10 eggs, overlapping in a tile-like fashion on both the upper [...] caterpillars pupate in an earthen cocoon, concealed either within the crop or in another suitable spot in the vicinity. Pupation occurs in a cocoon made of

Amazone Plants continues the path of organic cultivation

plants. In the end, everything more or less turned out fine – the plants in 12 cm pots were sold in 14 cm pots in the summer, and the plants in 14 cm pots [...] spring and in the autumn. Wim van der Meer explains, ‘Koppert is involved in a trial in which we are investigating whether Chrysopa eggs are effective at [...] therefore occur in the greenhouse that only become noticeable once the plants are in the hall. Fantastic results with Swirski-LD The main pests are the Western

Tomato leafminer

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 [...] absoluta ) are grey-brown with filiform antennae, alternating light or dark segments and recurved labial palps, that are well developed. Black spots are present [...] symptoms of damage done by the tomato leaf miner ( Tuta absoluta) are the blotch-shaped mines in the leaves. Caterpillars prefer leaves and stems, but they may

Potato/tomato psyllid

and causes ‘zebra chip’ in potatoes Indirect damage causes the most harm, since the consequences are wide-ranging and there are no ‘solutions’ or ‘cures’ [...] caused. Psyllids spread purple-top disease in potatoes and permanent yellowing disease in tomatoes, both of which are very harmful to the affected crops. Lifecycle [...] nymphs when feeding, is known as ‘psyllid yellows’, which results in delayed growth, weakness in the new leaves, chlorosis/reddening or purple colouration of

Broad mite

and cyclamen are also affected. Outside in temperate climates, broad mites (Polyphagotarsonemus latus) are not a serious problem, as they are unable to [...] General The broad mite (Polyphagotarsonemus latus) occurs in the tropics and in greenhouses in temperate regions. The broad mite (Polyphagotarsonemus latus) [...] elongated, oval eggs are firmly attached to the surface and are rather large (about 0.07 mm) compared with the subsequent, active stages. They are transparent and

False codling moth

leucotreta ) is native to sub-Saharan Africa and is found in all citrus production areas in Southern Africa. It also occurs on some of the Indian and Atlantic [...] Damage and symptoms Larval penetration holes in the fruit can only be found through thorough inspection. In green citrus fruit the peel around the penetration [...] months depending on the time of year and temperature. There are 6 overlapping generations in a year and it also has no diapause.

Fall Armyworm

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 [...] hailstorm 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 [...] disperse in a radius of about 500 km (300 miles) before oviposition, which is sufficient for them to move from seasonally dry habitats to wet habitats in Central

General Conditions Koppert

agreed to them in writing. All agreements are entered into on the condition subsequent that Koppert’s GC apply. 2.3 The provisions in article 2.1 and [...] both parties. If in such a case only one or more conditions of Koppert’s GC are deviated from, the remaining conditions shall remain fully in force. 3.4 [...] agreement has been concluded, except in case the agreement has already been performed, in whole or in part, by Koppert. V1 6.2 I n case of liquidation

Macrolophus pygmaeus

insect has been widely employed in integrated pest management (IPM) programs in tomato. Macrolophus pygmaeus adults are small, slender predatory bugs with [...] More delicate types of tomato are more susceptible to damage. In tomato there may be fruit deformations during setting, and in gerbera, misshapen flowers [...] insect. Adult females are 3.0-3.6 mm long and the males between 2.9-3.1 mm. They are slender with long legs and antennae. The bugs are green except for occasional

Impatiens thrips

the plant, specifically on the leaves. Eggs are deposited in the leaf tissue, while subsequent stages are found on the upper- and undersides of the leaf [...] as a consequence of the trade in foliage plants. Impatiens thrips (Echinothrips americanus) has a wide range of hosts. In addition to many ornamental plants [...] present on weeds in greenhouses. Life cycle and appearance of Impatiens thrips Impatiens thrips (Echinothrips americanus) develops in six stages: egg,