Now that summer has arrived , thrip and spider mite pressure is probable to increase . The mood inside the greenhouse is also changing , and - agree to Biobest advisor Koen Merkus - cosmetic cultivator should take the predatory mite that good suit these conditions . For lesson , Amblyseius swirskii is better suited to higher temperatures than Amblyseius cucumeris .
Around the world , growers of cut rose , gerberas , poinsettias , foliage mickle plant , and bedding plants for hang basketball hoop are successfully using predatory mites to ascertain thrips and wanderer mites .
" In decorative crop , the damage room access is very low , as the plants or flowers have to look everlasting , " tell Koen . " The use of the most desirable natural enemy help in this deference . "
Swirskii - System in force choice in warm conditionsIf thripid are the major problem , Koen say Swirskii - System is a good choice at this prison term of year .
" This all - rounder is very efficient against thrip but also helps check whitefly and spider touch , " he says . " Amblyseius swirskii thrives better at higher temperatures than Amblyseius cucumeris ( Amblyseius - System ) , which ornamental growers often bank on in winter and spring . "
" Swirskii - System can live for a long clock time , especially if fed once or twice with Nutrimite ™ . This provender supplement melt when watered , so the plants and efflorescence proceed to look beautiful . "
Effective against WFTBefore using predatory mites , Koen says it is very important to correctly identify the thrips species .
" Against Western Flower thrips ( Frankliniella occidentalis ) , the most unremarkably occurring species , both predatory mites are highly effective . In the case of Echinothrips americanus , they are less effective – those in uncertainty should get through their Biobest adviser . "
When to use Phytoseiulus - System or Californicus - System"Ornamental growers peculiarly dissemble by red spider mite generally prefer the predatory mite Phytoseiulus - System - the human beings ’s most effective biologic wanderer tinge ascendency , " says Koen . " Phytoseiulus persimilis has a shorter life cycle than the spider touch , which help it reduce the pest population .
" Phytoseiulus is at its best in humid condition . In dry greenhouse clime , Californicus - System ( Amblyseius californicus ) feels more at dwelling house and can be used preventatively . Meanwhile , Phytoseiulus - System work best in high-pitched pestilence pressure situations . "
Different spider mites active in poinsettiaKoen says it ’s important to ante up aid to which spider mite is present as in Poinsettias , for example , two metal money of spider mite can go on .
" Phytoseiulus - System successfully combats the most vulgar two - make out spider hint ( Tetranychus urticae ) , but it has more bother with the littler lewis mite ( Eotetranychus lewisi ) , " he say . " In this case , Californicus - System or Andersoni - System is a better selection . "
Andersoni organisation for smaller mitesAmblyseius andersoni is also recommend for insure littler mite , such as gall and tarsonemid mites . " Andersoni - System remains alive at lower and higher temperature while feeding mainly on freshness and rust mite as well as thrip . "
" As you may see , Biobest has a wide pick of predatory tinge product enable agriculturalist to choose the natural enemy that best suits their greenhouse clime and pest pressure . in force scouting and right identification of the pest wager a of the essence role in getting effective ascendency . "
