ground on stage Clarence Day , it is potential to count on when the first thrips pupae will concoct outside . Over the preceding two week , this has happened outside in the Dutch fields . However , thrips also appear to be more active indoors during the winter than first sentiment . When monitoring , HortiPro regularly see them in the fields .
In greenhouse , thripid are often present all twelvemonth round anyway . As a result growers progressively keep a close eye on pest development with the assistant of sticky bunker and HortiPro ’s pheromone PheroThrip 2.0 .
" We encounter many different species of thrips under crank , " divvy up Lennart Simonse on behalf of the pheromone supplier . The advisor counts the arrest on gluey traps at growers ' premises . After a dark spring in The Netherlands , thripid pressure in many greenhouse is humiliated than last yr . " The difference with last year is big , " he says . It is therefore important to monitor the population closely and , if necessary , control thrip in time .
Lennart tick off a sticky trap between potted anthuriums . PheroThrip 2.0allows growers to monitor thrip .
Intensive thrips monitoringKnowledge of thrips growing , indoors and outdoors , is increasing every year . For about four age now , HortiPro has been working on PheroThrip 2.0 , ( intensive ) monitoring is central to this approach .
Potted tail-flower agriculturist Leon Breugemand cut hydrangea grower André Vollering(link to article in Dutch)were among the early adopters . The agriculturist habituate the knowledge from the weekly monitoring to act in fourth dimension . At the time , they noticed that thrips were much earlier present in the greenhouse than initially opine . And also in larger number .
This is what a caught thrip looks like , magnified for uncloudedness
Timely interventionEven though thrips development out of doors started comparatively recent , and the pest pressure in greenhouses is limited , Lennart knows of examples where intervention with a plant protection product was still need this spring . " By intervening in meter with a ( unripened ) pesticide , the thrips pressure can be brought down again . Then the biological control agents can further control the thrips . "
With timely perceptiveness into thrips development , growers can interpose in time , ultimately allowing them to grow more organically . Several year afterwards , that is still how it works . The number of authorized harvest protective cover products is still decreasing in The Netherlands . Meanwhile , growers invest in worm netting , but not all mesh sizes keep out thrip . The little critter are not easy to catch , but they do look to be eager to get hold of HortiPro ’s gamey glutinous traps with thrips pheromone , Lennart see time and again .
HortiPro works with patrician sticky traps
Catching more thripsFor monitor purpose , HortiPro expend naughty sticky traps containing the PheroThrip pheromone . cultivator themselves sometimes also apply regular yellow viscous traps . " According to our numeration , we sometimes bewitch factor ten more with our blasphemous sticky gob with pheromone compared to the yellow sticky traps . An additional vantage is that thrips stand out better against a blue sticky trap . That aid in count and distinguishing the species . " And thus helps agriculturalist gain insights on what to do to keep thripid pressure dispirited .
For more information : Lennart SimonseHortiPro[email protected]www.hortipro.com
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