within the sachet and gradually disperse into the crop over a period of several weeks. Using their piercing mouthparts, they feed on prey by extracting
Adult leaf miners are small yellow and black coloured flies , at most only several millimetres long. When the adult females feed or lay eggs, they bore a hole
tissues develop further, the leaves and flowers can appear grossly deformed. Severely infested flower buds may not open at all. Fruits can also be damaged, even
have an unnaturally dense appearance because the petioles remain short. Severely attacked leaves become brittle, turn brown or silvery and die. Flowers
The caterpillars mostly pupate in the ground. Another family containing several species that damage greenhouse crops is the leafroller family, the Tortricidae
the crop: in begonia and kalanchoë a relatively small population can cause severe damage, whereas roses appear to tolerate larger numbers. Life cycle and
Trianum-P in industrial crops, Koppert Portugal has carried out trials with several growers. One of these trials was carried out with the company Sociedade
Hypoaspis miles . It is a soil-dwelling predatory mite occurring naturally in several parts of the world. This predatory mite controls larvae of sciarid flies
required: Mycotal requires sufficient humidity inside the crop canopy for several hours after application for the spores to germinate and infest the pest