Silicea on corn against armyworm
Posted: 07 Nov 2014, 08:42
EFFECT OF HOMEOPATHY Silicea terra IN CORN UPON FEED OF THE FALL ARMYWORM Spodoptera frugiperda Smith, 1797 (LEPIDOPTERA: NOCTUIDAE)
TA Modolon; V Pietrowski; LFA Alves; ATB Guimarães; M Pizzatto; JF Marcio
ABSTRACT: The aim of this work was to verify the feeding activity of fall armyworm
Spodoptera frugiperda fed at corn plants submitted by the homeopathic Silicea terra on.
Plants were corn variety Capixaba Incaper 203. Treatments consisted of Silicea terra in
dynamizations 12, 36, 60 and 84CH. The treatments of ethanol 1%, distilled water and
no intervention were control treatments. The applications of homeopathy on the corn
plants were by spray just after emergence, at the corn plants stage V2 and V3. When the
plants reached the V6 stage, the leaf sections were fed to larvae in the third instar of S.
frugiperda. We evaluated the variables: ingested food and feces produced by the
caterpillars, weight gain, amount of food assimilated and metabolized. Corn plants
treated with homeopathic Silicea terra 36CH was less consumed by the caterpillars,
affecting all variables. This is probably due to this homeopathy affect resistance of plant
tissues, hindering the supply of chewing. Silicea terra in 36CH applied in spray,
demonstrated potential to be used in the management of fall armyworm in corn, but
further studies should be conducted under conditions of field cultivation.
Keywords: Insect, Zea mays, feeding activity, fall armyworn, high dilution
preparations.
TA Modolon; V Pietrowski; LFA Alves; ATB Guimarães; M Pizzatto; JF Marcio
ABSTRACT: The aim of this work was to verify the feeding activity of fall armyworm
Spodoptera frugiperda fed at corn plants submitted by the homeopathic Silicea terra on.
Plants were corn variety Capixaba Incaper 203. Treatments consisted of Silicea terra in
dynamizations 12, 36, 60 and 84CH. The treatments of ethanol 1%, distilled water and
no intervention were control treatments. The applications of homeopathy on the corn
plants were by spray just after emergence, at the corn plants stage V2 and V3. When the
plants reached the V6 stage, the leaf sections were fed to larvae in the third instar of S.
frugiperda. We evaluated the variables: ingested food and feces produced by the
caterpillars, weight gain, amount of food assimilated and metabolized. Corn plants
treated with homeopathic Silicea terra 36CH was less consumed by the caterpillars,
affecting all variables. This is probably due to this homeopathy affect resistance of plant
tissues, hindering the supply of chewing. Silicea terra in 36CH applied in spray,
demonstrated potential to be used in the management of fall armyworm in corn, but
further studies should be conducted under conditions of field cultivation.
Keywords: Insect, Zea mays, feeding activity, fall armyworn, high dilution
preparations.