The number of natural predator around greenhouses significantly increase relative to received verges with short - mown grass . The bushes , tree , and flower fields provide natural enemy with alternative prey , pollen , nectar , and concealing places , permit population of born enemies to establish and develop . However , this also results in more pestilence , such as thrips , appear next to the greenhouse , indite Margreet Schoenmakers on behalf of Knowledge in your Greenhouse .
In factory farm and horticulture , maintaining biodiversity is of swell importance for the pollenation of crop and the control of pests . However , the extent to which the immediate surround of greenhouses influences pest control within greenhouses is largely unknown . Therefore , flower fields , trees , and shrubs next to greenhouse in the Bommelerwaard and Oostland expanse ( the Netherlands ) were monitor for 2 to 3 years .
The planted trees and shrubs proved to be particularly utilitarian for the early attraction and facilitation of vulture with specific aphid metal money that are not harmful to greenhouse crops . As such they can be an significant addition to flowering herbs that primarily supply nectar and pollen for instinctive foeman .
However , the field also show that the increase diversity of blossom flora near glasshouse heighten the entire densities of thrip , let in potential pest species such asThrips tabaciandThrips fuscipennis . The extent to which these populations transmigrate to nursery is indecipherable and needs to be further enquire .
The analysis of thrips and thrips predators per flowering plant metal money present interesting departure . The flower samples bring out there is a large variation in attractiveness to thrips between the plant species . This offer opportunity to select plant species that are not very attractive to thrip while being good host plant life forOrius .
away from bestow to the universal recovery of biodiversity , the research shows that operative biodiversity has nifty potential as the increased numbers of innate enemies contribute to the control condition of pestis in and around greenhouse . To what extent this can actually be achieved without running too many risks of increased pest insistency take further research .
The research was conducted by WUR Greenhouse Horticulture and was fund by the Dutch Ministry of Agriculture , Nature and Food Quality through the Top Sector Horticulture & Starting Materials , the KIJK foundation , the municipalities of Pijnacker - Nootdorp , Westland , and Greenport West - Holland .
See also : Functional Biodiversity in and around the Greenhouse ( in Dutch )
Source : Knowledge in your Greenhouse Foundation ( in Dutch )
