Harmful Insects for african violets: woolly louse (Pseudococcidae)


pseudococcus maritimus

pseudococcus maritimuswoolly louse (Pseudococcidae) It's just a unique in the world of insects represented. Each species of lice differs from other sediment structures of waxy consistency that covers your body. But, This variety of shapes does enjoy the eye of any lover of exotic plants.

Lice lanosi – is the most common and numerous group of insects. Many representatives of this group are aggressive plants from pests premises and environmental.
Lice lanosi are characterized by sexual dimorphism, females differ a lot of males.

Male body, resembles that of many insects. They have the head, the breast, well defined ABS, While the wings are well developed.
The female body is round or slightly elongated, is not separated the asemanandu rather, the larvae.
The males arrive at adulthood is no longer nourish and their life expectancy is short enough.

Females are fertile enough, and the waxy surface sediment body protects them from insecticides with which the plant is treated, making it even more to fight them.
This pest has the ability to become in a relative short time immune to many insecticides with which you treat the plant under attack.
The most common species that attack plants of interior are : seaside woolly paduchele (Pseudococcus maritimus), paduchele fainos (P. adonidum), the citrus woolly paduchele (Planococcus citri) the vine and grapes (P. calceolariae).

Those who are found regularly on Parma Violets, especially those grown in greenhouse conditions, are paduchele and the seaside woolly fainos.
Seaside woolly Paduchele (Pseudococcus maritimus): The female adult body is pink, covered with a whitish sediment of waxy consistency. Along the body are distributed to 17 pairs of spikes and alungiti thin cerosi. The last pair is the longest, but tepilor length does not exceed half of the female body length.
Female sizes are typically 5 x 3 mm. Adult lice and maggots colonize axillary points of the leaf, adanciturile formed in places where the branches leaf ribs on the underside of the leaf.

The females of the species in question are fertile enough. Only one female may deposit 300-400 eggs once. In terms of apartment or House, seaside woolly aphid female gives birth to five generations per year.
Until the advent of more modern insecticides, the appearance of these pests in many amateur collection of violets was tantamount to a death sentence for many plants. Plants were washed for months with a solution of rubbing alcohol or soap soap petroleum , they were not the effect of, giving only a temporary respite in the plant.

pseudococcus adonidumPaduchele fainos (P. adonidum) It has a waxy sediment more consistent than the species. The last pair of spikes the abdominals is longer than the other, surpassing and body length. Deplasandu on the host plant, female looking for secluded spots where they weave a net in which lay eggs in clusters.

The species in question, eclozeaza eggs fast enough. Fertlitatea single females vary in the range of 50-250 eggs.
This lanosi is signaled by lice downy white on herb and lipicoase secretion known as "honey dew".
Lice are species polifitofage lanosi. These stings plant and suck the juice cells. Loss of plant nutrients, and paduchele that feeds on plant tissues secrete saliva contains digestive enzymes that negatively affects the metabolism of plant.
In the case of a massive attack, Herb loses decorativitate, intepate deformed tissue, leaves and flower buds of a die. The plant is sensitive to secondary infections and time dies.

Paduchele lanos is controlled with insecticides as: Actara, Mospilan, Dantop, Sinotorax, Actelic 50 CE-0,05%, Fastac 10 CE-0,02%, Cynthia 2F-0,05%, Sanvalerate 20 EC -0,04%, Zolone EC-35 0,2%, Ekalux 50 CE-0,1%, Sumi-Alpha 2,5 EC-0,04%, Sumicidin 20 EC-0,04%, Nomolt 15 EC–0,05%, Decis 25 WG-0,05%; Lannate WP-25 3 kg / ha; Magic 20 CE-0,3%; Magic Super 20 CE-0,2%, Pallas-0,3%; Pyrinex 20 EC-0,3%.
It is recommended to use a penetrating like Silwet L add in a mix that was literally wetting the herb.
It is advisable to make at least two chemical treatments at an interval of 10 days.

There are also immune to treatment lanosi paduch with Actara, in this case we will use another insecticide.
Insecticides as Fitoverm, Actofit, Do not give the result ateptat Acarin in combatting lanos paduchelui. These insecticides can be included in the systemic insecticides, improving them significantly harmful effect on this.


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