“ In many decorative crop establishing predatory animal can prove highly challenging . In absence seizure of the pest no predatory mites will establish , unless we keep reintroducing them onto the plants , ” pronounce Senior Biobest Researcher Juliette Pijnakker . premature work with Swirskii - System showed that this problem could be overcome by eat predatory mites with Nutrimite . Juliette Pijnakker and fellow Diana Overgaag are investigating if this strategy can be stretch forth to other predatory mite species , such as montdorensis at ornamental nurseries in the Netherlands . Trials are being carried out in gerbera , hortensia , roses and a number of potted plant crops like calathea , genus Schefflera and ficus . farsighted - term establishment of high population of marauder is the direction , with investigator evaluate the consequence on thrip , tarsonemids and whiteflies .
In collaboration with Dutch advisor Bert Duijndam , the Biobest Group has protrude trials controlling tarsonemids in genus Gerbera . unlike predatory tinge were liberate with and without pollen . Their maturation was evaluate on the crop leave alone . After 4 insertion , the mites were counted and key . In the pollen treatments , predatory touch number were more than double up , where Swirskii - System and Montdorensis - System were introduced . The pollen had no effect on Amblyseius - System . Tarsonemids were well controlled , however in the Amblyseius - organisation intervention suppression of tarsonemid soupcon was less effective .
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The issue of Nutrimite on boosting brass of different predators vary greatly . In genus Gerbera , achieved good results have been achieved with the Montdorensis - System as well as with Swirskii - System . Establishment of these same coinage was also observed in schefflera and roses with Nutrimite . Further trials are now being performed to evaluate the effect of lower temperature on mite organisation .
How to use Nutrimite?Biobest advises using Nutrimite preventively , with the first predatory mites introductions , to help advance population organization and growth to a gamy grade . pass around Nutrimite is easy , as the can containing the pollen fits directly on the Nutri - App , an altered galvanising Makita hired man blower . The pollen can be bumble over the crop in less than 40 minute per ha . It is recommended grower apply 500 gravitational constant of Nutrimite per hectare , once every two hebdomad ( or 250 g once a calendar week ) . This is sufficient to help piranha colonize the plants . The stratum of Nutrimite is barely seeable and therefore does not compromise the aesthetic of the plant .
