Rice root aphid

or all of the following symptoms: Wilting; leaves become discoloured and yellow. “Honeydew” deposited on the plant by aphids promotes the growth of mould [...] wingless forms. The wingless form is dark olive-green, with a round body 1.4–2.4 mm long. It lives and feeds on the roots of the host plant. The winged form [...] and fungus. Transmission of viral disease between plants. Life cycle and appearance of the Rice root aphid Like most aphids , the rice root aphid appears

Flies

both directly and indirectly. The type of damage depends on the species of the flies. Direct damage is the immediate result of larvae feeding on root hairs [...] nuisance, are particularly small flies of the families Sciaridae ( sciarid flies ) and Ephydridae (shore flies). The larvae of these insects generally live on [...] their large number. Larvae of flies of the family Keroplatidae (mainly Lyprauta sp.) can cause damage in potted orchids. The Spotted Wing Drosophila has

Cut flowers

greatly. Important types are: Rose: The rose belongs to the genus Rosa from the Rosaceae family. The flowers of the plant are also called rose. There are [...] from the large family of the Amaryllidaceae, the narcissus family. The Hippeastrum comes from America, from northern Argentina to Mexico and the Caribbean [...] shrubs. In recent decades, the Hydrangea has been grown as a cut flower in all sorts of colors and sizes. Hippeastrum is the Latin name for a bulbous plant

Spotted Wing Drosophila

tubes which stick out of the fruit. There are three larval instars and in the third instar the larvae are about 3.9 mm long. The pupae of Drosophila suzukii [...] unripe fruits. The larval development takes place in the fruit. The larvae pupate either fully or partly in the fruit, or outside the fruit on the ground. [...] fruits have not collapsed, the occurrence of larvae within the fruit makes them unmarketable. The punctures made by the oviposition by D. suzukii exposes fruits

trial results wireworm control

and liquify the insect from the inside. The nematodes feed on the digested tissues of the dead insect and reproduce in large numbers. The pest insect stops [...] reference Average of 4 fields in Italy Since 1986, many years of experience have gone into the selection, production and quality control of our beneficial [...] nematodes. Each of the nematodes produced by Koppert has been selected to target specific pest insects. How does it work? After application, the nematodes set

Rancho Los Pinos is nature's ally

Thanks to the use of Koppert's biological systems, producers around the world have reduced their impact on the environment by drastically reducing the use of [...] profitability of their crops. The ongoing collaboration between farmers and Koppert lives up to one of its core values: working for the growers. [...] On its 610 hectares of protected farmland, the ranch produces various tomato and cucumber varieties, along with 55 hectares of open-field Brussels sprouts

Cabbage moth

leaves. The caterpillars destroy large numbers of leaves and their frass accumulates in the heart of cabbage, thereby lowering the commercial value of infested [...] have a light network of markings. First instar larvae of the cabbage moth (Mamestra brassicae) are gregarious, eating the edge of the leaves on which they [...] lay clusters of 20 to 100 eggs on the underside of leaves or elsewhere within the greenhouse structure. The eggs are initially light and translucent, becoming

Potato aphid

from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation [...] to extract large quantities of sap to get sufficient protein. The excess sugar is secreted in the form of honeydew, making the crop and its fruit sticky [...] characteristic of the potato aphid and is particularly visible in the nymphs. Immatures have a light dusting of whitish-grey wax. The aphids instantly

Nematodes established solution for Nesidiocoris in France

demonstrating the interest in the method that we have validated in the field. The results are very clear. It is very effective on the larvae. The nematodes [...] several blocks to regulate the bug and have tried several application methods: the small backpack sprayer directed at the head of the plant in a very localized [...] Audrey Vignaud is Koppert’s technical head of the consultant for the South East Region of France: ‘We recommended the beneficial nematode Capsanem in combination

American serpentine leaf miner

roughly one hour the larva crawls out of the leaf and falls to the ground. This occurs in the early morning. The larva crawls into the ground to pupate [...] enter the plant tissue via the feeding spots. Life cycle and appearance of American serpentine leaf miner The life cycle of a leaf miner has the following [...] ovipositor, usually in the upper side of the leaf. Egg spots are oval and hard to distinguish from feeding spots. The larvae of Liriomyza trifolii are