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 Flori » Daunatorii Florilor

Daunatorii Florilor

Paianjenii rosii:mici paianjeni ce-si construiesc panze intre ramuri. 
Apar sub diferite culori, incepand cu galben si terminand cu rosu. Sunt foarte periculosi deoarece se inmultesc repede. Daca observati panze de paianjen pe copacelul dumneavoastra sau frunzele devin argintii sau se usuca inseamna ca aveti o posibila infectie cu acest daunator. 
Apar tot in timpul sezonului de crestere, in conditii uscate si calde in special. Nu suporta umiditatea. 
Taiati ramurile afectate si incercati sa-i indepartati cu un jet de apa. Acestora le place mediul cald si uscat, asa ca pulverizati regulat copacelul  cu apa pentru a-ii impiedica sa se instaleze. Folositi un insecticid sistemic.

 

Paduchi testosi: au forma ovala, fiind acoperiti cu o platosa maronie. 
Apar ca niste mici umflaturi maronii, cu o platosa protectoare. De aici denumirea “testosi”. Pot sa fie vazuti atat pe frunze cat si pe trunchi. Ca si afidele, excreta o substanta lipicioasa. 
Ataca de primavara pana toamna, insa sunt observati mai des vara tarziu. 
Din cauza platosei, acestia sunt greu de eradicat. Cel mai bine este sa folositi un insecticid sistemic. Daca nu gasiti, incercati cu solutie de tutun. Se recomanda Mospilan sau orice insecticid cu protectie-totala.

Paduchi lanosi: insecte acoperite cu un puf alb 
Mici aglomerari de “puf” alb la baza frunzelor si a ramurilor. 
Paduchii pot infecta copacul in timpul sezonului de crestere. 
La fel ca in cazul afidelor, se recomanda spalarea lor cu un jet de apa. Apoi se aplica un insecticid pe baza de pyrethrina, dicofol sau unul cu protectie-totala sau Mospilan.

 

Afide:sunt cele mai comune insecte sugatoare de seva. Culoarea lor este verde, insa exista si specii mai periculoase, cele negre. 
O substanta lipicioasa pe frunze insotita de cadera acestora sunt primele semne. La o inspectie mai apropiata, veti vedea ca varfurile ramurilor sunt acoperite de afide. 
Aceste insecte tind sa apara din primavara pana in toamna. 
Pentru inceput, incercati sa eliminati cat mai multe cu ajutorul unui jet cu apa. Apoi pulverizati copacelul cu un insecticid  pe baza de pyrethrina, dicofol, organofosfati ,organoclorati sau unulprotectie-totala sau cu Mospilan. Repetati aplicarea conform instructiunilor de pe ambalaj.

 

Afidele radacinilor:
acestea ataca sistemul radicular atasandu-se la capatul radacinilor si sugand seva. 
Cresterea incetinita si lipsa vigorii sunt o indicatie. Cel mai usor mod de a verifica este o inspectia a radacinilor. Ridicati cu grija copacelul din ghiveci si daca vedeti spori alb-albastri atunci copacelul este infectat. A nu fi confundat cu mycorhizae, o ciuperca benefica ce are culoarea alb-crem. 
Perioada atacului este in timpul sezonului de  crestere, de primavara pana toamna. 
Se pulverizeaza trunchiul si ramurile cu insecticid sistemic. Apoi se uda o data copacelul cu o solutie din acest insecticid. Frunzele si radacinile il vor absorbi iar afidele vor muri in timp ce se hranesc.