When you have been doing visitation for years , you occasionally require to talk about them . This is exactly what NovaCropControl ’s plant tomfool specialists did on Wednesday , 31 August , during an capable evening . Consultant Tim Weijs devote a presentation on aphids at thewell - attend evening . inquiry has shown that aphid air pressure can be foreshorten by adjusting sustenance .
Nitrate - aphid relationshipMuch has already been spell in the scientific literature about the family relationship between aphid susceptibility of crop and nitrate levels in plants . Yet , at NovaCropControl , there is an idea that there is more than just the family relationship nitrate - aphid susceptibleness . Tim : " We desire to crack the code or at least read how it is . "
Tim discussed an experimentation with wheat on rockwool , utile as a sterile baseline . He showed that the more nitrate a industrial plant is given , the bigger the plant grows . In bend , aphid tend to go for the adult flora , so that combination is not useful for those who need to uprise aphid - free .
The five wheat industrial plant Tim took were given increasing stage of nitrate from pull up stakes to right , range from 1 mmol to 14 mmol . The EC varied from 1.5 to a level best of 2 for the plant with 14 mmol .
Learning about aphid reproductionIn the subject area , the plants were put in a tube , and cereal aphids were deliberately added . The industrial plant could still get air through a mesh cover charge but otherwise could not break away the aphids . " We also did the test once in the burrow glasshouse in aphid tents , but there we had so many fly sheet - ins in the calendar week before the tents were placed over the crop … " Laughs : " That cater a lot of data , super poise , but we could n’t do anything with it . "
After two weeks in the tube , the researcher execute the plant life foliage by folio to score the aphid . In total , the investigator are able to do 24 rounds a year like this and are make rapid progression . " We are find out a lot about how aphids reproduce , " he says .
What the researchers have also learned is that some mulct - tuning of the research method acting could be done . At the unfastened evening , this also prove to be something that apply to other discipline . A in force rationality for the researchers to by choice take a stride back sometimes .
Other elementsThe researcher are currently still look specifically at nitrate , but in the future tense , they also want to count at other specific nutritional element , such as manganese , Fe , amino acids , and various types of plant life enhancers . Each time , the basis is a plant sap depth psychology . It is also still possible to inquire the attractiveness of crop to aphids . " If I lower my nitrate , will my neighbor have aphid and I wo n’t ? " a grower laughingly posed as a inquiry .
One attendee wanted to know if silicon , a popular substance among plant enhancer producer , would also be looked at . " Who knows , " Tim designate with a laugh . " When you see how many motion we get about all kinds of unlike substance , you lie with there is still a slew to search . "
Attentive audience at Tim ’s presentment . Tim gave several at the undefendable eve , leave all the 100 or so visitor to enamour up .
For more information : NovaCropControl[email protected]www.novacropcontrol.nl
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