Koppert launches Spidex Vital for spider mite


Koppert Biological Systems has launched an improved Spidex biological solution for control of spider mite infestations.

The company states Spidex Vital gives better control of spider mite hotspots by building populations with improved egg-laying capacity. Trials conducted with the new composition showed the searching capacity of the predatory mites covered a greater distance over a longer period as adults were followed up by growing nymphs in an ever-growing population.

The new formulation and better nutrition ensure an energetic population of Phytoseiulus persimilis that gives infested plants the best start for fighting hotspots. Spidex Vital includes several phases of mite development including eggs, juveniles, growing nymphs and adults, for prolonged and continuous activity in the crop. Trials showed a greater cumulative presence of predatory mites on infested leaves and proof of predation by Spidex Vital mites.
“Predatory mites have an energetic start,” says Tim Bossinga, product manager with Koppert. “The females already have enough energy to develop their eggs and can immediately start laying their eggs on release. Formerly, they first needed to feed in the field in order to develop their eggs. Because they start depositing their eggs directly, they have an improved ability to lay more eggs in the same time frame, hugely enhancing the biocontrol process and efficacy.”
The characteristic orange/red colour of Spidex mites is caused by pigments that are part of spider mites. Spidex Vital mites are white, but after consumption of spider mites, the pigments are absorbed and Spidex mites change colour.


New AG International November/December 2020


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