warzywnictwo warzywnictwo
  Mapa witryny | Dojazd     
piątek, 19.01.2018
.
.




Informacje ogólne
- Strona główna
- O Instytucie
- Dyrekcja
- Działalność
- Struktura organizacyjna
- Rada naukowa
- Konferencje i seminaria
- Aktualności
- Dojazd
Prace badawcze
- Współpraca z zagranicą
- Projekty zagraniczne
- Projekty krajowe
- Własność intelektualna
Usługi
- Oferta usługowa
- Szkolenia
Zasoby
- Strony pracowników
- Biblioteka
Wydawnictwa
- Oferta wydawnicza
- Publikacje
- Vegetable Crops Research Bulletin

General information | Instruction for authors | Search | Select issue
 

 

 

 

 

 

 

 


VCRB :: Contents of Volume 56/2002 :: Detailed information


ECOLOGY OF ASPARAGUS BEETLE (CRIOCERIS ASPARAGI) (COL., CHRYSOMELIDAE) WITH ALLOWANCE FOR OTHER INSECT SPECIES OCCURRING ON ASPARAGUS 


Jerzy SZWEJDA
Research Institute of Vegetable CropsKonstytucji 3 Maja 1/3, 96-100 Skierniewice, Poland


Summary

Asparagus beetle (Crioceris asparagi) occurring at the same field complex of an asparagus 
plantation in 1983, 1984, 1999 and 2000 was subjected to observations on its seasonal
occurrence dynamics and harmfulness. In 1984, 1999 and 2000 - egg, larval and adult
development stages were less numerous within the first than in the second generation
of asparagus beetle, the situation in 1983, however, being reversed. Weather conditions
and natural enemies have been found the most important factor affecting the occurrence
of C. asparagi during all vegetation season irrespectively of the observation year. Adult
beetles were always noted at the end of April during the emergence of plants and later
on till the end of October. Observations of location of eggs laid by females on asparagus
in the four cited years have revealed that the most attractive plant parts, comprising
from 50 to 80% of eggs, were the "needles" and the flowers, lateral branches and main
stems with shares reaching up to 25, 10 and 5%, respectively. No significant differences
in the time of occurrence of adults, egg laying and larvae development have been found
between the study years. The following other phytophagous species were present abundantly:
spotted asparagus beetle - C. duodecimpunctata (L.), two species of Diptera: Platyparea
poeciloptera
Schr. and Delia platura Meig., aphids: Brachycorynella asparagi and Aphis
fabae
Scop., bug - Carpocoris fuscipinus Boh. (Pentatomidae). Additionally (2000 and 2001),
11 entomophagous species of Cantharidae, Coccinelidae, Diptera, Chrysopidae and Eulopidae
family and 2 saprophagous species of Diptera family were noted.


keywords:Crioceris asparagi, population dynamics, harmfulness, other phytophagous and entomophagous insects

[Back]      [Printer friendly version]