Effect of low-temperature storage on the life history parameters and voracity of Hippodamia variegata (Coleoptera: Coccinellidae)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F19%3A43899020" target="_blank" >RIV/60076658:12310/19:43899020 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.eje.cz/pdfs/eje/2019/01/02.pdf" target="_blank" >https://www.eje.cz/pdfs/eje/2019/01/02.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14411/eje.2019.002" target="_blank" >10.14411/eje.2019.002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of low-temperature storage on the life history parameters and voracity of Hippodamia variegata (Coleoptera: Coccinellidae)

Popis výsledku v původním jazyce

For biological control it is necessary to store mass-reared biological control agents when the demand is low. The objective of this study is to increase their shelf life without signifi cantly reducing their fi tness. The ladybird Hippodamia variegata is a widespread and voracious aphidophagous predator, with an important role in decreasing the abundance of pest aphids in many parts of the world. We investigated the effect of storage at three temperatures: constant 1 degrees C, constant 6 degrees C, and an alternating thermal regime of 12 degrees C/0 degrees C (the higher temperature for 12 h and the lower one for another 12 h). They were exposed to each of the temperature regimes for either 15, 25, 35, 45 or 60 days. We recorded survival, pre-oviposition period, fecundity and voracity of adult H. variegata following storage. The survival of adult beetles significantly declined with increasing storage duration at all three temperatures. Storage at 6 degrees C up to 35 days and at 12 degrees C/0 degrees C up to 45 days had no significant effects on the fecundity of the lady-birds, but storage for longer signifi cantly decreased fecundity. Beetles stored at 1 degrees C for any of the durations had signifi cantly lower fecundities. Prolonged cold storage caused an increase in the pre-oviposition period at all storage temperatures. Generally, 6 degrees C and 12 degrees C/0 degrees C are the best temperatures for storing the ladybirds as they had the least negative effect on their fitness. The results of this research can help in improving the quality of H. variegata stored for use as biological control agents in the following season.

Název v anglickém jazyce

Effect of low-temperature storage on the life history parameters and voracity of Hippodamia variegata (Coleoptera: Coccinellidae)

Popis výsledku anglicky

For biological control it is necessary to store mass-reared biological control agents when the demand is low. The objective of this study is to increase their shelf life without signifi cantly reducing their fi tness. The ladybird Hippodamia variegata is a widespread and voracious aphidophagous predator, with an important role in decreasing the abundance of pest aphids in many parts of the world. We investigated the effect of storage at three temperatures: constant 1 degrees C, constant 6 degrees C, and an alternating thermal regime of 12 degrees C/0 degrees C (the higher temperature for 12 h and the lower one for another 12 h). They were exposed to each of the temperature regimes for either 15, 25, 35, 45 or 60 days. We recorded survival, pre-oviposition period, fecundity and voracity of adult H. variegata following storage. The survival of adult beetles significantly declined with increasing storage duration at all three temperatures. Storage at 6 degrees C up to 35 days and at 12 degrees C/0 degrees C up to 45 days had no significant effects on the fecundity of the lady-birds, but storage for longer signifi cantly decreased fecundity. Beetles stored at 1 degrees C for any of the durations had signifi cantly lower fecundities. Prolonged cold storage caused an increase in the pre-oviposition period at all storage temperatures. Generally, 6 degrees C and 12 degrees C/0 degrees C are the best temperatures for storing the ladybirds as they had the least negative effect on their fitness. The results of this research can help in improving the quality of H. variegata stored for use as biological control agents in the following season.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10616 - Entomology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

European Journal of Entomology

ISSN

1802-8829

e-ISSN

—

Svazek periodika

116

Číslo periodika v rámci svazku

2019

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

10-15

Kód UT WoS článku

000460046700002

EID výsledku v databázi Scopus

2-s2.0-85065027852