Jacobiasca formosana | |
---|---|
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Hemiptera |
Suborder: | Auchenorrhyncha |
Family: | Cicadellidae |
Genus: | Empoasca |
Species: | E. onukii |
Binomial name | |
Empoasca onukii (Matsuda) | |
Jacobiasca formosana | |||||||
---|---|---|---|---|---|---|---|
Chinese | 茶小綠葉蟬 | ||||||
| |||||||
Alternative Chinese name | |||||||
Chinese | 小綠浮塵子 | ||||||
| |||||||
Second alternative Chinese name | |||||||
Chinese | 浮塵仔 | ||||||
|
Empoasca onukii,the tea jassid,is an insect species belonging to the subfamily Typhlocybinae of the family Cicadellidae. Plant hosts include Gossypium (cotton) species [1] and,notably, Camellia sinensis (Chinese tea plants). The species is distributed throughout East,Southeast,and South Asia (including in China,India,Malaysia,Pakistan,Sri Lanka,Taiwan,and Thailand). [1]
Common names for E. onukii include the small green leafhopper ,tea green leafhopper,or tea jassid . [2] In Mandarin Chinese,the insect is referred to as 茶小綠葉蟬(cháxiǎo lǜyèchán) or 小綠浮塵子(xiǎo lǜfúchénzǐ). [2] In Siyen Hakka,it is called 著涎(Zhe xián),著蜒(Zhe yán),or 著煙(Zhe yān). In Taiwanese,it is 浮塵仔(phû-tîn-á),蜒仔(iân-á),蝝仔(iân-á),烟仔(ian-á),趙烟(tiō-ian),跳仔(tiô-á) or 青仔(chhiⁿ-á). [2] [3]
It was previously thought that the tea jassids in Japan,Taiwan,and China were three distinct species (Empoasca onukii,Jacobiasca formosana,and Empoasca vitis,respectively). Newer molecular [4] and morphological [5] evidence shows that they are all the same species,Empoasca onukii.
The mature J. formosana are slender and yellowish-green with translucent wings with a body length of about 3 mm (0.1 in). [2]
The adults eat young plant shoots for the nutrient solution within,slowing bud growth and causing yellow-green bud curling. [2] The leaf margins turn brown and eventually fall off. [2]
Empoasca onukii is important in the production of Taiwan's dongfang meiren tea. The tea,which is an oolong tea with a flavor likened to ripened fruit and honey,is made from leaves that have been fed upon by these insects. [6] The insects,which thrive in warmer,pollution-free environments,suck the phloem juices of the tea stems,leaves,and buds,producing monoterpene diol and hotrienol which give the tea its unique flavor. [6]
This process has inspired makers of other types of tea such as dongding oolong tea and the east coast black teas of Hualien and Taitung to withhold pesticide use in order to replicate this process in other teas. [7] Similar action of jassids and thrips helps form the muscatel-like flavor of India's second flush Darjeeling tea. [8]
Bubble tea is a tea-based drink that originated in Taiwan in the early 1980s. Taiwanese immigrants brought it to the United States in the 1990s,initially in California through regions including Los Angeles County,but the drink has also spread to other countries where there is a large East Asian diaspora population.
Oolong is a traditional semi-oxidized Chinese tea produced through a process that includes withering the leaves under strong sun and allowing some oxidation to occur before curling and twisting. Most oolong teas,especially those of fine quality,involve unique tea plant cultivars that are exclusively used for particular varieties. The degree of oxidation,which is controlled by the length of time between picking and final drying,can range from 8% to 85% depending on the variety and production style. Oolong is especially popular in southeastern China and among ethnic Chinese in Southeast Asia,as is the Fujian preparation process known as the gongfu tea ceremony.
Lapsang souchong or Zhengshan xiaozhong is a black tea consisting of Camellia sinensis leaves that is smoke-dried over a pinewood fire. This smoking is accomplished either as a cold smoke of the raw leaves as they are processed or as a hot smoke of previously processed leaves. The intensity of the smoke aroma can be varied by locating the leaves closer or farther from the source of heat and smoke or by adjusting the duration of the process. The flavour and aroma of smoked lapsang souchong is described as containing empyreumatic notes,including wood smoke,pine resin,smoked paprika,and dried longan;it may be mixed with milk but is not bitter and usually not sweetened with sugar. The tea originates from the Wuyi Mountains region of Fujian and is considered a Wuyi tea. It is also produced in Taiwan. It has been labelled as smoked tea,smoky souchong,tarry lapsang souchong and lapsang souchong crocodile. While the tea leaf grading system adopted the term souchong to refer to a particular leaf position,lapsang souchong may be made with any leaf of the Camellia sinensis plant,though it is not unusual for the lower leaves,which are larger and less flavourful,to be used as the smoking compensates for the lower flavour profile and the higher leaves are more valuable for use in unflavoured or unblended teas. In addition to its consumption as a tea,lapsang souchong is also used in stock for soups,stews and sauces or otherwise as a spice or seasoning. Beginning in the early 21st century,an unsmoked variety of lapsang souchong was developed in the village of Tong Mu Guan in the Wuyi mountains. The unsmoked variety has become increasingly popular,particularly in the Chinese domestic market.
Pu'er or pu-erh is a variety of fermented tea traditionally produced in Yunnan Province,China. In the context of traditional Chinese tea production terminology,fermentation refers to microbial fermentation,and is typically applied after the tea leaves have been sufficiently dried and rolled. As the tea undergoes controlled microbial fermentation,it also continues to oxidize,which is also controlled,until the desired flavors are reached. This process produces tea known as hēichá (黑茶),literally "black tea",though the term is commonly translated to English as "dark tea" to distinguish it from the English-language black tea,for which it is not.
Chinese teas can be classified into six distinctive categories:white,green,yellow,oolong,black and post-fermented. Others add categories for scented and compressed teas. All of these come from varieties of the Camellia sinensis plant. Most Chinese teas are cultivated and consumed in China. It is commonly available in Chinese restaurants and grocery shops worldwide. Green tea is the most common type of tea consumed in China.
Barley tea is a roasted-grain-based infusion made from barley. It is a staple across many East Asian countries such as China,Japan,and Korea. It has a toasty,bitter flavor.
Compressed tea,called tea bricks,tea cakes or tea lumps,and tea nuggets according to the shape and size,are blocks of whole or finely ground black tea,green tea,or post-fermented tea leaves that have been packed in molds and pressed into block form. This was the most commonly produced and used form of tea in ancient China prior to the Ming Dynasty. Although tea bricks are less commonly produced in modern times,many post-fermented teas,such as pu-erh,are still commonly found in bricks,discs,and other pressed forms. Tea bricks can be made into beverages like tea or eaten as food,and were also used in the past as a form of currency.
Tea blending is the act of blending different teas to produce a final product that differs in flavor from the original tea used. This occurs chiefly with black tea,which is blended to make most tea bags,but it can also occur with such teas as Pu-erh,where leaves are blended from different regions before being compressed. The most prominent type of tea blending is commercial tea blending,which is used to ensure consistency of a batch on a mass scale so that any variations between different batches and seasons of tea production do not affect the final product. Commercially,it is considered important that any batch of a particular blend must taste the same as the previous batch,so a consumer will not be able to detect a difference in flavor from one purchase to the next.
Lei cha or ground tea is a traditional Southern Chinese tea-based beverage or gruel in Hakka cuisine.(擂;léi).
Korean tea is a beverage consisting of boiled water infused with leaves,roots,flowers,fruits,grains,edible mushrooms,or seaweed. It may or may not contain tea leaves.
Pinus massoniana is a species of pine,native to Taiwan,a wide area of central and southern China,and northern Vietnam.
Dongfang meiren(Chinese:東方美人;lit. 'eastern beauty') or Oriental Beauty,or baihao(白毫),among other Chinese names,is a heavily oxidized,non-roasted,tip-type oolong tea originating in Hsinchu County,Taiwan. It is a tea produced from leaves bitten by the tea jassid,an insect that feeds on the tea plant. Terpenes are released in the bitten leaves,which creates a honey-like taste. Oriental beauty,white-tip oolong,and champagne oolong are other names under which dongfang meiren is marketed in the West.
Canned tea is a relatively recent method of marketing tea which has been sold traditionally as leaf tea and also,for the last 100 years,in tea bag form. It utilises the canning process to produce a ready made drink. Perceived advantages includes ease of use and the possibility of additives;the disadvantages are the cost of shipment and a lack of freshness.
Tea processing is the method in which the leaves from the tea plant Camellia sinensis are transformed into the dried leaves for brewing tea.
High-mountain tea or gaoshan tea refers to several varieties of Oolong tea grown in the mountains of central Taiwan. It is grown at altitudes higher than 1,000 metres (3,300 ft) above sea level,and includes varieties such as Alishan,Dayuling,Yu Shan,Wushe,and Lishan. The high humidity and natural precipitation in the high mountain ranges of Nantou and Chiayi Counties make the region a suitable environment for growing tea plants. High Mountain Oolong is a tea that holds all of its original nutrients that are within the unfermented green tea. It does not hold the usual grass-like taste,hints of chestnut flavor paired with nutty aromas are often described. The fermentation process that removes the harsh ingredients allows the tea to taste flavorful.
Taiwanese tea includes four main types:oolong tea,black tea,green tea and white tea. The earliest record of tea trees found in Taiwan is from 1717 in Shui Sha Lian (水沙連),present-day Yuchi and Puli,Nantou County. Some of the teas retain the island country's former name,Formosa.
Breynia vitis-idaea,the officinal breynia,is a perennial tree-like species of Phyllanthaceae,found from India east to Taiwan and Okinawa and south to Indonesia. It is a shrub or treelet with egg-shaped leaves that can reach up to 3 m tall. It has staminate flowers and spherical,red fruit.
Empoasca decedens is a species of leafhoppers belonging to the family Cicadellidae. This species has a small,slender body with a yellowish green coloration. Both males and females measure between 3.1 to 3.3 millimetres in length.
Insect tea refers to teas made from leaves bitten by,and the droppings of,insects fed on specific plants. Most insect teas originate from the Southeast Asian region. They are often used in local traditional medicine,but have not been well-studied in the scientific literature.
Small green leafhopper may refer to: