Sammanfattning

Upon herbivory, plants release herbivore-induced plant volatiles (HIPVs), which induce chemical defenses in the plant as well as recruit natural enemies. However, whether synthetic HIPVs can be employed to enhance biological control in a cultivated crop in the field is yet to be explored. Here we show that a biodegradable formulation loaded with induced and food-signaling volatiles can selectively recruit the common green lacewing, Chrysoperla carnea, and reduce pest population under field conditions. In apple orchards, the new formulation attracted lacewing adults over a 4-week period, which correlated well with independent assessments of the longevity of the slow-release matrix measured through chemical analyses. In barley, lacewing eggs and larvae were significantly more abundant in treated plots, whereas a significant reduction of two aphid species was measured (98.9% and 93.6% of population reduction, for Sitobion avenae and Rhopalosiphum padi, respectively). Results show the potential for semiochemical-based targeted recruitment of lacewings to enhance biological control of aphids in a field setting. Further research should enhance selective recruitment by rewarding attracted natural enemies and by optimizing the application technique.

Nyckelord

apple; barley; Chrysoperla carnea; herbivory induced plant volatiles; integrated pest management; semiochemicals; ecological intensification

Publicerad i

Insects
2019, Volym: 10, nummer: 1, artikelnummer: 6
Utgivare: MDPI

SLU författare

• Pålsson, Joakim

  • Institutionen för växtskyddsbiologi, Sveriges lantbruksuniversitet
    

• Porcel Vilches, Mario

  • Institutionen för växtskyddsbiologi, Sveriges lantbruksuniversitet
    

• Dekker, Teun

  • Institutionen för växtskyddsbiologi, Sveriges lantbruksuniversitet
    

• Tasin, Marco

  • Institutionen för växtskyddsbiologi, Sveriges lantbruksuniversitet
    

Associerade SLU-program

SLU Nätverk växtskydd


Globala målen

SDG15 Skydda, återställa och främja ett hållbart nyttjande av landbaserade ekosystem, hållbart bruka skogar, bekämpa ökenspridning, hejda och vrida tillbaka markförstöringen samt hejda förlusten av biologisk mångfald
SDG2 Avskaffa hunger, uppnå tryggad livsmedelsförsörjning och förbättrad nutrition samt främja ett hållbart jordbruk


UKÄ forskningsämne

Jordbruksvetenskap


Publikationens identifierare

DOI: https://doi.org/10.3390/insects10010006

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/98384