In 2020 , 95 pct of the greenhouse crops were biologically controlled with epenthetic wasps or predatory tinge . In 2016 , this was 92 percent , and in 2012 78 percent . For each of the crops study , biological pest control should be use to at least 75 percent of the cultivate region by 2020 . These are preliminary result from a CBS survey on biological crop trade protection acquit among 1,315 greenhouse gardening companies .

In 2020 , biological pest control was used on the entire cultivated area of cuke , capsicum , and tomatoes in glasshouse to battle pests and spider mites . For these three nutrient harvest , the use of biological pest control was already gamy in 2012 . For example , 96 percentage of tomato land area and almost 90 percent of cucumber and sweet Madagascar pepper acreage were cover with biological pest control in 2012 .

The use of biological plague control condition on strawberries develop under glass has increase importantly : from 58 percent in 2016 to 98 percent in 2020 . cosmetic plant such as roses , gerberas , and chrysanthemum will also have a biological ascendence share of more than 90 percent in 2020 . Only pot plants - for flowering or for foliation - lag behind with 75 percent and 81 percent , severally .

From top to bottom : Total of 9 crops , tomato , common pepper , cucumber , roses , strawberries ( under glass ) , gerberas , chrysanthemum , pot plant ( leaf ) , pot plant ( flowering )

increase turn of biological control factor usedFour chief groups of biologic control broker are used to combat pests in greenhouse gardening . Around 52 billion predatory touch and bloodsucking white Anglo-Saxon Protestant were deployed in 2020 , almost five times as many as in 2016 . The act of parasitic white Anglo-Saxon Protestant and gall midges deployed impart up to 2.4 billion , more than twice as much as in 2016 . The numbers of predatory bugs , lacewings , hoverflies , and predatory beetle are considerably lower at 0.2 billion , but more than twice as many as in 2016 . The fourth chemical group of biologic pest ascendency agents is nematodes : these are used in high numbers in greenhouse gardening , but only number for 2020 are useable ( 5,202 billion ) .

Increase in the tame region with predatory tinge and predatory thripsThe use of predatory jot and predatory thrip on all nine crops take increased slightly , from 66 percent of the cultivated area in 2016 to 69 per centum in 2020 . The use of these biological gadfly ascendance agents increased , especially in the cultivation of strawberry mark under glass ( 98 percentage of the area , against 54 percent in 2016 ) and in gerberas ( 98 percent against 68 percent ) . In love apple culture , predatory mites play a less important role . There , bloodsucking wasp are more crucial as biologic control agent .

From top to bottom : total 9 crops , rose , cucumbers , pepper , strawberry ( under glass ) , gerberas , chrysanthemum , skunk plants ( foliage ) , stool plants ( blossoming ) , tomatoesStrongest increase in employment of parasitical WASP in stand up productionIn 2020 parasitic wasp and gall midges were used on 74 percent of the total area of the nine crop in greenhouse horticulture . In 2016 , this was still 67 per centum . These biological control agent are widely used in the refinement of peppers ( 98 percent of the field ) , tomato ( 95 pct ) , and gerberas ( 94 percent ) . The big growth in role was in rose cultivation : from 52 percent of the country in 2016 to 82 percent in 2020 . In both types of crapper plants ( flowering and foliage ) , the employment is less than 40 percent of the cultivated region .

More predatory bugs , flies , and beetles used as pesticidesThe role of predatory bug , lacewings , hoverflies , and predatory beetle in greenhouse gardening increased from 54 percent of the cultivated area in 2016 to 61 pct in 2020 . In black pepper cultivation , this chemical group of insects is used for pest ascendence on 98 per centum of the region , keep abreast by tomato polish with 93 per centum . The use of these biological pest control broker increased importantly in the greenhouse finish of roses , from 25 percentage in 2016 to 56 percentage in 2020 . The other crops , excluding chrysanthemums , also saw an increment . In Cucumis sativus cultivation , this group of biological control agents is little used ( 8 percent of the total expanse ) , as it is ravening mite that are mainly used .

reservoir : CBS