BIOCONTROL POTENTIAL OF SOME ENTOMOPATHOGENIC NEMATODES AGAINSTSTELIDOTA GEMINATA (SAY)

IF 0.8 4区生物学 Q3 ZOOLOGY

Redia-Giornale Di Zoologia Pub Date : 2020-09-28 DOI:10.19263/REDIA-103.20.07

N. Grujic, B. Nježić, A. S. Anifantis, E. Tarasco

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Abstract

Stelidotageminata(Say)(Coleoptera: Nitidulidae), also known as strawberry sap beetle is considered to be serious pest of strawberry worldwide. Allstages of this pest feed on ripe fruitswhichmakes its control with chemical insecticides extremely difficult. This work was testingsusceptibility of last instar larvae of S. geminatato three, among commerciallythe most commonly used species of entomopathogenic nematodes Heterorhabditisbacteriophora, Stei-nernemacarpocapsaeand Steinernemafeltiae(Rhabditida: Heterorhabditidae and Steinernematidae), including two native strains. The present work was carried out through two typesof the experiments.First experiment was in plastic Petri dishes with the nematodes applied on filter paper. Second one, in attemptto approachto more natural conditions, effect of the entomopathogenic nematodes on insect’smortality was tested in containers filled with sand.Mortality of S. geminatalarvae in Petri dishes in highest nematode concentrations of about 100 infective juveniles per cm2was 90%,82% and 70% for commercial strains of S. carpocapsae, H. bacteriophoraand S. feltiaeand 76% and 64% for H. bacteriophoraand S. feltiae native populations. In containers with sand mortality was higherthan in Petri dishesand the highestrecorded insect mortality with about 50nematodes per cm2was99.5%, 89%, 75.5%, 69% and 66% with commercial strainsS. feltiae,S. carpocapsaeand H. bacteriophora, and native strains H. bacteriophora andS. feltiae,respectively

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几种昆虫病原线虫对双生螺杆线虫的生物防治潜力

草莓汁甲虫(stidotageminata)(鞘翅目:Nitidulidae)，又称草莓汁甲虫，是世界范围内草莓的严重害虫。这种害虫的所有阶段都以成熟的水果为食，这使得用化学杀虫剂来控制它非常困难。本研究在商业上最常用的昆虫病原线虫Heterorhabditisbacteriophora、stei -nernemacarpocapsae和steinernemaeltiae(横纹肌目:Heterorhabditidae和Steinernematidae)中，对包括两种本地菌株在内的三种细菌的末龄幼虫进行了敏感性测试。本文的工作是通过两种类型的实验进行的。第一个实验是在塑料培养皿中，将线虫涂在滤纸上。第二，为了接近更自然的条件，在装满沙子的容器中测试了昆虫病原线虫对昆虫死亡率的影响。在最高线虫浓度约为每平方厘米100条感染幼虫的培养皿中，玉米丝杆线虫、嗜菌丝杆线虫和麻蝇丝杆线虫的商业菌株的死亡率分别为90%、82%和70%，而嗜菌丝杆线虫和麻蝇丝杆线虫本地种群的死亡率分别为76%和64%。沙容器中线虫的死亡率高于培养皿，其中商业菌株的最高死亡率分别为99.5%、89%、75.5%、69%和66%，约为每平方厘米50只线虫。feltiae, S。辣椒和嗜菌杆菌，以及本地菌株嗜菌杆菌。feltiae分别

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来源期刊

Redia-Giornale Di Zoologia ZOOLOGY-

CiteScore

1.20

自引率

20.00%

发文量

审稿时长

>12 weeks

期刊介绍： Redia supports its long history of basic and applied research in entomology and invertebrate zoology in the field of crop and forest tree protection responding at the same time to the increasing need of innovation and technological improvement.