Open AccessBiological, ecological characteristics, and management of mealybug speciesRastrococcus chinensis (Hemiptera: Pseudococcidae) of Indian mulberry (Morinda officinalis How.)
Author(s) -
Xuan Hoat Trinh,
Thi Xuyen Luu,
Le Bich Hong Tran,
Xuan Vi Le,
Thi Thu Huong Le
Publication year - 2021
Publication title -
tạp chí khoa học và công nghệ việt nam (b, online) (vietnam journal of science and technology - most)/tạp chí khoa học và công nghệ việt nam (điện tử)/tạp chí khoa học và công nghệ việt nam (b, print) (vietnam journal of science and technology - most)
Language(s) - English
Resource type - Journals
eISSN - 2615-9759
pISSN - 1859-4794
DOI - 10.31276/vjst.63(2).44-48
Subject(s) - mealybug , hemiptera , biology , longevity , pest analysis , scale insect , botany , fecundity , insect , integrated pest management , horticulture , toxicology , agronomy , population , medicine , environmental health , genetics
Indian mulberry (Morinda officinalis How.), locally known as ba kich, is widely planted in many mountainous provinces in Northern Vietnam for medicinal uses. The mealybug species Rastrococcus chinensis (Hemiptera: Pseudococcidae) is considered as the most dangerous insect pest forthe Indian mulberry in Vietnam. R. chinensis developed and reproduced normally at 25oC, but did not reproduce when the temperature reached 30oC. At 25oC, the life cycle was 75.19 days, the adult’s lifespan was about 81 days, the longevity was about 110 days. While at 30oC, the adult’s lifespan shortened to about 26 days with no fertility. The efficacy of azadirachtin + matrine (Golmec 9EC) with R. chinensiswas 73.44% at 7 days and prolonged until 14 days after treatment.