In general , chrysanthemum growers get through the first 8 or 9 month well with organic cultivations . It is in the last few month , in wintertime , that they often resort to spray . The climate gets worse , the constituent side is less participating and so they often do ' a round of chemical substance ' . But because statute law and regulations are becoming stricter and the range of a function of products available is develop tighter , the challenge is becoming large all the sentence .
André van Paassen and Martien Mellisant
Oroganic , a natural crop protection agent establish on orange oil colour , propose a solution . The mathematical product has had favorable reception for indoor cultivation for eighteen months and since then it has been used in various harvest . It is a physical contact broker with a all-embracing spectrum of activity , but it is not a ' killer ' or a ' fire - asphyxiator ' ; a untested thripid or aphid is effectively killed , but if adult thripid or aphid are all over the plant life , you may no longer reach them and you are too late . It should be sprayed along with the water and/or any other federal agent , such as Vertimec ( which is often used in chrysanthemum ) . It draws the broker through the stratum of wax on the leaf into the plant , while at the same time turning a droplet into a film , explain Martien Mellisant , sale manager at producer Oro Agri .
A clean first is half the battleA clean scratch line is everything , jazz André van Paassen , one of Arcadia ’s growers and the manager at the party in De Kwakel . He grows a broad spectrum of fluff chrysanthemum in two adjacent block of four hectare each . This give him the opportunity to experiment , in harvest protection but also in all other aspect of cultivation , because he always has a serious address . This is how he started with Oroganic , which he infix for the first time along with Vertimec in the autumn of 2019 .
Brilliant effect have been accomplish with organic methods , André knows . Thrips in exceptional are excellently tackled with montdorensis , ' little soldier ' that attack the thrips like an ' army ' . If the thrips air pressure increases , you have to introduce more soldiers . " In the past , when chrysanthemum agriculturist talk of issues , 50 % of the time it was about thrips . That ’s simply not an emergence any longer . "
It ’s different with , for example , spider mite , which often rears its nous in winter . " There are growers who go through the winter fully organically , but the effectiveness is less in these cases . If you then do a chemical round , you have to rest vigilant for red spider mite . However , we suppose that the combining of Vertimec - Oroganic makes it potential to stop using other spider mite agents . So far , so just . "
Resistance breakerLeaving aside the nuances , the same can be said for aphids and bugs . The range of intersection is getting stiff , so much so that for aphids in combination with biology only one product ( Teppeki ) is actually available . " You see , however , that the effectiveness decreases , because that is the case for all agents that are used endlessly . you could therefore also see Oroganic as a resistance circuit breaker " , Martien says . " By mixing these agent , you forbid resistance and broaden the effect of the spraying . "
In one of the two cultivations André has now used considerably less chemicals throughout the twelvemonth . " In the chrysanthemum business , we are used to using the nebulizer every now and then . That is a kind of insurance , cleaning up everything soundly , which gives a estimable look . In the beginning , you have a minor plant and you’re able to reach everything easily ; if there is a full craw and the pest imperativeness increases , then you are too late . Oroganic fuse well with the biological ascendancy agent , and where those come down short and a round of chemicals is still necessary , you’re able to get by with considerably less . "
For more information : Oro AgriMartien Mellisant[email protected]www.oroagri.eu
Arcadia ChrysantenAndré van Paassenwww.arcadiachrysanten.nl
© FloralDaily.com/Geert Peeters
