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Article

H 0 01239485
The mirid predators M. pygmaeus and N. tenuis - Behaviour and distribution on tomato crops

L

GARD (B), BARDEL (A), GINEZ (A)

FR/CTIFL, FR/APREL

INFOS CTIFL

Janvier-février 2022

378

p. 46-50

graph., photo., anglais

Nesidiocoris tenuis is difficult to control without affecting Macrolophus pygmaeus, as it is very similar in appearance to this beneficial insect. This article reviews the knowledge acquired on the biology and behavior of these two mirid bugs, particularly on N. tenuis. The two bugs do not forage on the same strata of the tomato plant, as N. tenuis is mainly found on the upper part, and M. pygmaeus in the middle of the plant. This difference becomes more pronounced when temperatures increase in the greenhouse. This behavior can be useful for applying localized control treatments to N. tenuis with minimal impact on M. pygmaeus. A warm climate favors the development of N. tenuis, contrary to M. pygmaeus that has a lower temperature threshold, which could explain the decline in M. pygmaeus populations observed in summer.

culture protégée, insecte auxiliaire, insecte ravageur, biologie du parasite/auxiliaire, méthode de lutte, climat, culture sur substrat, lutte biologique

TOMATE

I/NESIDIOCORIS TENUIS, IX/MACROLOPHUS PYGMAEUS

12/01/2022

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