Production and release of lacewing-eggs in organic olive crops in la Rioja, Argentina

Authors

  • Inés del Carmen Redolfi
Keywords: biological control, breeding, lacewings, olive crop

Abstract

The province of La Rioja, has the largest area of land (30 000 has) with olive crop in Argentina and the main biological controls are lacewings. The adults of the specie Chrysoperla argentina González Olazo & Reguilón, were obtained from breeding CENIIT Laboratory and in field. Several observations and preliminary tests allowed to determine a protocol for production and release of eggs. A couple of lacewing in glassA of 8.5ø x 5cm, with green paper affixed to the inside of the lid, and food: water, wet diet: water-carob-honey-yeast-pollen (1:1:1:2) and dry diet; yeast-pollen-carob flour (1:1:1). Ten repetitions were made. In 29 days there was a total of 5 944 eggs. The average daily production in the 10 glassA,was 204.97 eggs.The fold-change was performed daily, in a mesh cageB. The lid with pedunculate eggs were tied among the branches of the olive tree, preferably in the area NW of the tree. After 10 days the lid were collected and checked for normal emergence of the larvae I, in 95% of the eggs.

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Published
24-07-2017
How to Cite
Redolfi, I. del C. (2017). Production and release of lacewing-eggs in organic olive crops in la Rioja, Argentina. Agroecology, 9, 17–21. Retrieved from https://revistas.um.es/agroecologia/article/view/300581
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Artículos