Susceptibility of Selected Tea Shoots to Oviposition by Empoasca onukii (Hemiptera: Cicadellidae) and Feasibility of Egg Removal with Harvesting

Hou, Bohua; Tang, Hao; Li, Jianlong; Meng, Xiangwu; Ouyang, Gecheng

doi:10.3390/insects11060338

Cited by 4 publications

(2 citation statements)

References 20 publications

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“…Development to adults can take between 8 and 14 days, depending on temperature, and the lifespan of adults in the field is unknown (Shi et al ., 2015). Adult females pierce young tea stems, petioles, and leaf mid‐veins and oviposit under the epidermal tissue (Hou et al ., 2020; Yao et al ., 2020b). Empoasca onukii nymphs and adults feed on young leaves by rupturing cells, injecting a watery saliva, and ingesting fluids (Backus et al ., 2005; Jin et al ., 2012).…”

Section: Methodsmentioning

confidence: 99%

Differing non‐linear, lagged effects of temperature and precipitation on an insect herbivore and its host plant

Scott

Wei

et al. 2021

Ecological Entomology

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1. Multivariate climate change is expected to impact insect densities and plant growth in complex, and potentially different, ways. Tea (Camellia sinensis) is a unique crop system where the increase in quality from chemical defences induced by Empoasca onukii (Homoptera: Cicadellidae) feeding can outweigh reductions in yield and make attack by this leafhopper desirable to tea farmers. Differential impacts of weather attributes on tea and herbivores could impact feasibility of this unique farming strategy in a rapidly changing climate.2. We monitored leafhopper densities and tea shoot growth at a tea farm in Fujian Province, China for 2 months (June and July). We used distributed lag non-linear models to capture potentially delayed and non-linear effects of weather attributes on tea growth and leafhopper densities.3. Weather attributes had contrasting effects on leafhopper density and tea shoot growth. Leafhopper densities were highest with low daily mean and maximum temperatures, while warm temperatures favoured tea growth. Effects of temperature on leafhoppers were delayed, while effects on tea growth were immediate. Precipitation reduced tea growth, and had a delayed positive effect on leafhopper density.4. The delayed effects of weather attributes on leafhoppers indicate that earlier, less conspicuous life stages (i.e. eggs and early instar nymphs) may be susceptible to desiccation. Although increasing annual mean temperature is commonly predicted to benefit multivoltine insect pests, our results show that cool, wet conditions benefit E. onukii during summer months when they are most abundant. These results have implications for tea green leafhopper management strategies.

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Section: Methodsmentioning

confidence: 99%

Differing non‐linear, lagged effects of temperature and precipitation on an insect herbivore and its host plant

Scott

Wei

et al. 2021

Ecological Entomology

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“…The population decline of tea green leafhoppers are thought to be influenced by plucking and heavy rain. Harvesting tea leaves can be a way to get rid of eggs, because Empoasca onukii lays its eggs inside the tea buds [7]. In addition, high rainfall can reduce the intensity of Empoasca sp.…”

Section: Tea Green Leafhopper (Empoasca Spmentioning

confidence: 99%

Diversity and Population Dynamics of Pest in Sambawa Tea Plantation, West Java

Rahmah

Sartiami

Kusumah

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Tea plants are grown in monoculture on a large scale, so that can be a caused pest in the high population. This study aims to determine the diversity and dynamics of pest populations in Sambawa tea plantations in West Java. Tea pests are found in the crop and on the leaves picked at the plant. The dynamics of the pest population were noted by observing the area of attack, the intensity of the attack, and population density. Twenty-one pests on tea plants were identified based on their morphological characteristics and symptoms. Among them, seven species attack bud and young leaf, two species attack old leaf, twelve species attack young and old leaves, and one pest attacks tree trunk. Twelve pests were carried to the factory’s withering tub of leaves. Tea green leafhopper (Empoasca sp.), tea leaf roller (Caloptilia theivora), tea mosquito bug (Helopeltis bradyi), and tea tortrix (Adoxophyes sp. and Homona coffearia) were the main pests at the observation site. The population of tea green leafhoppers decreased after the second application of pesticides, post-picking, and heavy rains. The tea leaf roller was not found after the first and second pesticide applications. The population of tea leaf rollers began to increase during picking until the last observation. The highest population of tea mosquito bugs was found after the second pesticide application. The population of tea tortrix decreased after the second pesticide application.

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Identification and expression profiles of candidate chemoreceptor genes in the tea leafhopper, Empoasca onukii Matsuda (Hemiptera: Cicadellidae)

Lun,

Xu,

Zhang

et al. 2023

Phytoparasitica

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Susceptibility of Selected Tea Shoots to Oviposition by Empoasca onukii (Hemiptera: Cicadellidae) and Feasibility of Egg Removal with Harvesting

Cited by 4 publications

References 20 publications

Differing non‐linear, lagged effects of temperature and precipitation on an insect herbivore and its host plant

Differing non‐linear, lagged effects of temperature and precipitation on an insect herbivore and its host plant

Diversity and Population Dynamics of Pest in Sambawa Tea Plantation, West Java

Identification and expression profiles of candidate chemoreceptor genes in the tea leafhopper, Empoasca onukii Matsuda (Hemiptera: Cicadellidae)

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