Study on plant resistance to aphid on peppers

A new study on plant resistance to aphids was recently completed. The aim of this study was to find measures with which to inhibit aphids, in particular in pepper plants. Although in literature there are clear indications that the plant resistance can be increased, this has not emerged in this study. An elevated potassium gift, worm humus and plant strengtheners based on humic acids or salicylic acid yielded no significant inhibition of aphid. However, the reverse is found: when peat was mixed with worm humus for 20%, this resulted in a 35% population increase compared to untreated plants in peat alone. The mechanism here is unclear.

The fertilization analysis of the crop showed no significant differences with respect to the control plants. It’s possible that the composition of the phloem sap was different, but that is difficult to measure. More research is needed to understand this mechanism of accelerated growth. When this mechanism is known, it may be possible to develop measures that inhibit the aphid in peppers.


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Source: LTO Groeiservice

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