Harmful Insects for african violets: Trips (Thripidae).


Violeta africana affected by thrips

daunatorii violetei africane: Trips-ul (Thripidae)TRIPS is one of the most prevalent pests of ornamental and crop plants. Probably, there is no plant in the world that has not been attacked by these insects.

Under greenhouse is impossible to completely destroy Trips. The figure is well kept under control so that insects cause as little harm as possible the appearance and quality decorative plants, fruit or Vegetables.
Those who intend to collect Saintpaulia, must be prepared to make acquaintance with representatives of this species. In terms of apartment, can completely get rid of these small creatures.

You do need to know who we are dealing.
Tripsii are some very small insects, length adult insects is 2-2.5 mm, and thickness of not greater than 1 mm. Is "equipped" with two pairs of wings. Standby, wings are folded as a narrow light stripe on the back of the insect and are invisible.

The mature insects are darker in color-black or brown. Many species of thrips larvae are pale - yellow or vierzui, this allows them to be hardly distinguishable on the plant leaf surface and. Larvae are distinguished from adults by body size, that is much smaller and they are missing and the wings.

Trips detection is difficult. These insects lead a secluded life, ascuzandu into stamens, flower buds or axillary leaf in points.

Trips control chart should be designed according to the developmental stages of insect. Has six stages of insect development :
• Oul. The female lays eggs in the tissues of leaves and flowers. Chemical processing plant in egg deposition destroy everything that moves and feeds, less eggs;
• larva stage I, And adult present on the leaves, branches, flower and fruit development ;
• pupa stage I and II in soil. In stage II of the TRIPS DEVELOPMENT is protected from chemical effect. Larvae cease to feed and burrow into the soil to plant roots, chemicals nemaiavand no effect on larvae.

Tripsii are resistant to pesticides, especially insects on the plant surface. They grow and multiply rapidly, and to combat it usually proceeds to increase the concentration of insecticide, 2-3 times higher than the recommended dose.

The first sign that indicates surface Tripsvioleta africana afectata de thrips-senpolia plant is sticky pollen that falls from the stamens to the petals of flowers. It should be kept in mind and the fact that the pollen may be present on the petals of flowers during heat, change the plant site, shaking flower or plant contamination of certain species of mites.

To check if the plant is affected by TRIPS, will break some flowers and will shake a few times or knuckle over a sheet of black paper. You can open some anthers.
Damage and the degree of injury is highly dependent on the species Saintpauliei Trips.

Greenhouse thrips (Californian), tobacco and decorative plants thrive not only in the flowers, but also on the leaf, causing damage similar to those produced by flat mite, is much more severe and leaving plenty of leaf surface cells arranged in stripes sucking. In the long run, tripsii affects the most decorative appearance of violet. Flowers are semiofilite, deformed and stained with small white dots and black (dawn- musculite, black- fecal). The leaves have poor aesthetics, The parka was pierced with many needles. Abundant pollen is sprinkled on the lower petals of flowers.

There are less aggressive species of thrips, giving life just one generation per year. Commonly, they enter the house through open windows, vents, bouquets of flowers. Behaves "Pasnic", "Produce" pollen in small and insignificant decreases flowering period. With the beginning of fall can be seen even a self-treatment plant. Trips like it went in the ground. But the situation is not far from being real. Some species of thrips find a nice little place to sleep.

The most aggressive species of African violets are TRIPS California TRIPS, Greenhouse thrips, tobacco thrips. These do not leave the plant in any way. Plants are injured in an aggressive, flowers are unsightly. Are carriers of viral infections, hardly borne plant.
The only way to get rid of TRIPS is to perform a series of treatments with systemic insecticides (ACTARA, CONFIDOR, DIAZOL, Dimethoxy, FASTAC, LIDER700 WG, MALATOX, MOSPILAN, etc.). Pretty efficiency turns out to be a 2-3 times increased the concentrate insecticide plus a small amount of shampoo (flea). When chemical processing will remove flower buds. We recommend a 2-3 processing within 10 days.


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