Dinamika populacija i seksualni indeks proljetnih repičinih pipa: ključni čimbenici učinkovite zaštite uljane repice

Scientific paper - Original scientific paper

• Title (english): Population dynamics and sexual index of stem weevils: key factors for effective protection of oilseed rape
• Author: Tanja Gotlin Čuljak
• Author: Tea Klaić
• Author: Vedrana Okrugić
• Author: Ivan Juran
• Author's institution: University of Zagreb; Faculty of Agriculture
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract (croatian)

Proljetne repičine pipe (mala repičina pipa i velika repičina pipa) prvi su štetnici uljane repice u proljeće koji mogu nanijeti znatne štete. Vrijeme pojave odraslih oblika proljetnih repičinih pipa i njihova migracija u ozimoj uljanoj repici, kao i pojava ženka u ukupnoj populaciji štetnika, povezani su s optimalnim rokom suzbijanja štetnika. Tijekom četiri godine istraživanja na šest lokaliteta praćena je dinamika populacije proljetnih repičinih pipa i udio ženka u ukupnoj populaciji (seksualni indeks) uporabom žute posude. Nakon uzorkovanja su prema morfološkim obilježjima identificirane obje vrste. Spolovi su identificirani prema morfološkim oznakama na srednjim i zadnjim nogama mužjaka. Velike repičine pipe i male repičine pipe pojavljuju se u različito vrijeme. Pojava ženka i udio ženka u ukupnoj se populaciji razlikuje između dvije vrste, što zahtjeva promišljen pristup suzbijanju.

Abstract (english)

Stem mining weevils (cabbage and rape stem weevil) are the first pests of oilseed rape in the spring that can cause significant damage. The time of occurrence of adult forms of stem weevils and their migration into winter oilseed rape fields as well as the appearance of females in the total pest population are related to the optimal time of pest control. During the four years of research at six locations, the dynamics of the stem weevil’s population and the ratio of females in the total population (sexual index) were monitored using a yellow water traps. After sampling, both species were identified by morphological characteristics. The sexes were identified by morphological markings on the middle and hind legs of the males. The time of occurrence of rape and cabbage stem weevil is different. The occurrence of females and the ratio of females in the total population differ between the two species which
requires a thoughtful approach to pest control.

• Keywords (croatian): velika repičina pipa; mala repičina pipa; seksualni indeks; suzbijanje
• Keywords (english): rape stem weevil; cabbage stem weevil; sexual indeks; control
• Language: croatian
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - domestic
• Publication version: Published version
• Journal title: Glasilo biljne zaštite
• Numbering: vol. 20, no. 4, pp. 449-461
• p-ISSN: 1332-9545
• URN:NBN: urn:nbn:hr:204:799227
• Publication: 2020
• Document URL: https://hrcak.srce.hr/240790
• Type of resource: Text
• Access conditions: Open access
• Created on: 2024-03-12 08:52:53