izpis_h1_title_alt

Poljsko preizkušanje učinkovitosti pripravka Agree WG (Bacillus thuringiensis var. aizawai) za zatiranje gosenic (Lepidoptera) na papriki (Caspicum annuum L.)
Močnik Grčar, Matevž (Author), Trdan, Stanislav (Mentor) More about this mentor... This link opens in a new window

.pdfPDF - Presentation file, Download (3,08 MB)
MD5: B712FF00F1020030786F0379AABFACDE

Abstract
Poskus smo izvedli v treh blokih leta 2018 na Laboratorijskem polju Biotehniške fakultete v Ljubljani. V njem smo želeli preizkusiti nov pripravek Agree WG, ki se uporablja kot selektivni insekticid na podlagi bakterije Bacillus thuringiensis var. aizawai. Poskus smo izvedli na papriki (Capsicum annuum L.), kjer se pogosto srečujemo z napadi škodljivcev iz reda Lepidoptera. V vsakem bloku smo imeli tri obravnavanja, ki smo jih škropili z različnimi insekticidnimi pripravki (Agree WG, Lepinox plus in pozitivna kontrola, v kateri smo uporabili insekticid Karate Zeon 5 SC) in negativno kontrolo, kjer rastlin nismo škropili. Vsako obravnavanje je bilo v bloku enkrat ponovljeno. Na poskusni parceli smo namestili tudi feromonske pasti za spremljane sezonske dinamike sledečih škodljivcev iz reda Lepidoptera: Helicoverpa armigera, Ostrinia nubilalis, Agrotis segetum in Autographa gamma. Glede na pojavljanje navedenih škodljivcev in obseg poškodb zaradi gosenic na rastlinah smo izvajali škropljenja. V raziskavi smo ugotovili nizko stopnjo poškodb na listih zaradi hranjenja gosenic, ki niso imele vpliva na pridelek plodov. Zaradi majhnega obsega poškodb na listih (na plodovih in na steblih se skoraj niso pojavile), ne moremo podati ocene o učinkovitosti pripravka Agree WG. Med vrstami metuljev, katerih številčnost populacije smo spremljali s feromonskimi vabami, smo največjo številčnost ugotovili pri glagolki (Autographa gamma), ki je značilen listni škodljivec. Povprečen ulov samcev glagolke v času trajanja poskusa je znašal 1,37 osebka po vabi na dan. Največji pridelek preračunan v tone na hektar smo zabeležili v obravnavanju negativna kontrola (11,33 t/ha), najmanjšega pa v obravnavanju Lepinox plus (9,65 t/ha).

Language:Slovenian
Keywords:biotično varstvo rastlin, paprika, gosenice, Agree WG, Lepidoptera, poljski poskus, Bacillus thuringiensis var. aizawai, Bacillus thuringiensis var. kurstaki, pridelek
Work type:Master's thesis/paper (mb22)
Tipology:2.09 - Master's Thesis
Organization:BF - Biotechnical Faculty
Year:2019
Publisher:[M. Močnik Grčar]
UDC:635.649:632.937.15:632.951:631.559(043.2)
COBISS.SI-ID:9333881 This link opens in a new window
Views:601
Downloads:172
Metadata:XML RDF-CHPDL DC-XML DC-RDF
 
Average score:(0 votes)
Your score:Voting is allowed only to logged in users.
:
Share:AddThis
AddThis uses cookies that require your consent. Edit consent...

Secondary language

Language:English
Title:Field testing of efficacy of bioinsecticide Agree WG (Bacillus thuringiensis var. aizawai) against caterpillars (Lepidoptera) on pepper (Capsicum annuum L.)
Abstract:
In 2018, we conducted three block experiment on testing field of Biotechnical faculty. We wanted to determine efficiency of new Bt insecticide Agree WG (Bacillus thuringiensis var. aizawai) on Slovenian pesticide market. The experiment was carried out on pepper (Capsicum annum L.) plants, where we can often detect injuries caused by pests of Lepidoptera order. We had a total of three treatments, in which plants were sprayed with different insecticides (Agree WG, Lepinox plus and positive control with syntetic insecticiede Karate Zeon 5 SC) and negative control without insecticide application. Each treatment was once repeated in each block. On field we set feromone traps for monitoring season dynamic of pest poppulations: Helicoverpa armigera, Ostrinia nubilalis, Agrotis segetum and Autographa gamma. When we detected enough monitored pests or injuries, we conducted spraying. In our experiment we recorded low level of leaf and fruit injuries caused by caterpillars, which did not have effect on pepper yield. Overall, we can not give an estimate of insecticide efficiency of Agree WG for caterpillar control. At pest monitorig with feromone traps we found the highest abundance of silver Y moth (Autographa gamma) which is typical leaf pest. Average number of Y moth during all research time was 1,37 adult males per trap per day. Highest yield in tons per hectare was in negative control (11,33 t/ha), while it was the lowest (9,65 t/ha) in Lepinox plus observion.

Keywords:biological control, pepper, caterpillar, Agree WG, Lepidoptera, field testing, Bacillus thuringiensis var. aizawai, Bacillus thuringiensis var. kurstaki, yield

Similar documents

Similar works from RUL:
Similar works from other Slovenian collections:

Comments

Leave comment

You have to log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back