Agroecological management of a soil-dwelling orthopteran pest in vineyards

作     者：Jerry Asalma Nboyine Stephane Boyer David J. Saville Stephen David Wratten 

作者机构：Bio-Protection Research Centre Lincoln University Christchurch New Zealand CSIR Savanna Agriculture Research Institute Tamale Ghana Environmental and Animal Sciences Unitec Institute of Technology Auckland New Zealand Saville Statistical Consulting Limited Lincoln New Zealand 

出 版 物：《Insect Science》 (昆虫科学（英文版）)

年 卷 期：2018年第25卷第3期

页      面：475-486页

核心收录：

学科分类：0710[理学-生物学] 071010[理学-生物化学与分子生物学] 07[理学] 09[农学] 0902[农学-园艺学] 090201[农学-果树学] 

基　　金：funded by the New Zealand Government's Callaghan Innovations PhD Research and Development Grant in partnership with Constellation Brands NZ a Lincoln University fee scholarship 

主　　题：cover crops grapevine yield pest management soil-dwelling insects vineyards yield loss 

摘      要：The efficacy of different combinations of undervine and inter-row treatments for managing a soil-dwelling orthopteran pest, weta （Hemiandrus sp.）, in vineyards was investigated over 2 seasons. This insect damages vine buds, thus reducing subsequent grape yield. The undervine treatments comprised pea straw mulch, mussel shells, tick beans [Viciafaba Linn. var minor （Fab）], plastic sleeves on vine trunks （treated control） and control （no intervention）, while inter-rows contained either the existing vegetation or tick beans. Treatments were arranged in a randomized complete block design with 10 replicates. Data were collected on weta densities, damage to beans and components of yield. The latter were numbers of bud laid down per vine, shoots per bud, clusters per shoot, grape bunches per vine, bunch weight and yield. The undervine treatments significantly affected all variables except the number of shoots per bud. In contrast, none of the variables was significantly affected by the inter-row treatments or their interaction with undervine treatments, apart from weta density. At the end of the experiment, weta density in the shell treatment was about 58% lower than in the control. As a result, there was about 39% significant yield increase in that treatment compared to the control. Although the undervine beans and sleeves treatments increased yield, there were no reductions in weta density. With undervine beans, the insect fed on the bean plants instead of vine buds. Thus, yield in that treatment was approximately 28% higher than in the control. These results demonstrate that simple agroecological management approaches can reduce above-ground damage by soil-dwelling insects.