Dataset Information

Insecticide application and its effect on the density of rice planthoppers, Nilaparvata lugens and Sogatella furcifera, in paddy fields in the Red River Delta, Vietnam.

ABSTRACT: The brown planthopper, Nilaparvata lugens, and the white-backed planthopper, Sogatella furcifera, are significant pest insects for rice. Both species are able to survive year-round in northern Vietnam's Red River Delta, which includes a large rice-producing region. This study aimed to evaluate insecticide use by farmers and its effect on the density of planthoppers in the region. Through interviews conducted with farmers in study sites in Nam Dinh (ND) and Vinh Phuc (VP) Provinces, we learned that farmers frequently used imidacloprid, fipronil, and emamectin-benzoate in ND and pymetrozine and thiamethoxam in VP. Farmers applied insecticides when the local government announcements regarding plant protection were broadcast. Generalized linear model analysis indicated that the selective insecticides applied did not contribute to reducing the densities of planthoppers in the farmers' fields. Our results indicate the possible development of insecticide resistance by planthoppers or improper insecticide application by farmers.

SUBMITTER: Matsukawa-Nakata M

PROVIDER: S-EPMC6529747 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Insecticide application and its effect on the density of rice planthoppers, Nilaparvata lugens and Sogatella furcifera, in paddy fields in the Red River Delta, Vietnam.

Matsukawa-Nakata Mizuki M Huy Chung Nguyen N Kobori Youichi Y

Journal of pesticide science 20190501 2

The brown planthopper, Nilaparvata lugens, and the white-backed planthopper, Sogatella furcifera, are significant pest insects for rice. Both species are able to survive year-round in northern Vietnam's Red River Delta, which includes a large rice-producing region. This study aimed to evaluate insecticide use by farmers and its effect on the density of planthoppers in the region. Through interviews conducted with farmers in study sites in Nam Dinh (ND) and Vinh Phuc (VP) Provinces, ...[more]

PMID: 31148939

Similar Datasets

Project description:The white-backed planthopper (WBPH), Sogatella furcifera (Horváth), is one of the serious rice pests because of its destructive feeding. The salivary glands of the WBPH play an important role in the feeding behaviour. Currently, however, very little is known about the salivary glands at the molecular level. We sequenced the salivary gland transcriptome (sialotranscripome) of adult WBPHs using the Illumina sequencing. A total of 65,595 transcripts and 51,842 unigenes were obtained from salivary glands. According to annotations against the Nr database, many of the unigenes identified were associated with the most studied enzymes in hemipteran saliva. In the present study, we identified 32 salivary protein genes from the WBPH sialotranscripome, which were categorized as those involved in sugar metabolism, detoxification, suppression of plant defense responses, immunity-related responses, general digestion, and other phytophagy processes. Tissue expression profiles analysis revealed that four of 32 salivary protein genes (multicopper oxidase 4, multicopper oxidase 6, carboxylesterase and uridine phosphorylase 1 isform X2) were primarily expressed in the salivary gland, suggesting that they played putative role in insect-rice interactions. 13 of 32 salivary protein genes were primarily expressed in gut, which might play putative role in digestive and detoxify mechanism. Development expression profiles analysis revealed that the expression level of 26 of 32 salivary protein genes had no significant difference, suggesting that they may play roles in every developmental stages of salivary gland of WBPH. The other six genes have a high expression level in the salivary gland of adult. 31 of 32 genes (except putative acetylcholinesterase 1) have no significant difference in male and female adult, suggesting that their expression level have no difference between sexes. This report analysis of the sialotranscripome for the WBPH, and the transcriptome provides a foundational list of the genes involved in feeding. Our data will be useful to investigate the mechanisms of interaction between the WBPH and the host plant.

Dataset Information

Insecticide application and its effect on the density of rice planthoppers, Nilaparvata lugens and Sogatella furcifera, in paddy fields in the Red River Delta, Vietnam.

Publications

Insecticide application and its effect on the density of rice planthoppers, <i>Nilaparvata lugens</i> and <i>Sogatella furcifera</i>, in paddy fields in the Red River Delta, Vietnam.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets