Yıl 2014, Cilt 38, Sayı 2, Sayfalar 207 - 213 2014-05-18

Do organic silicon and imidacloprid synergistically induce toxicity to the new invasive mealybug Phenacoccus solenopsis Tinsley on Portulaca grandiflora plants?
Do organic silicon and imidacloprid synergistically induce toxicity to the new invasive mealybug Phenacoccus solenopsis Tinsley on Portulaca grandiflora plants?

Jun HUANG [1] , Juan ZHANG [2] , Daoze WANG [3] , Lili ZHANG [4] , Yijuan XU [5] , Mingjiang LI [6]

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In this study, the effects of organic silicon (Si) on the toxicity of imidacloprid to a new invasive mealybug, Phenacoccus solenopsis (Hemiptera: Pseudococcidae), infesting Portulaca grandiflora (Caryophyllales: Portulacaceae) plants were evaluated using spotting and dipping methods under laboratory and field conditions to improve management strategies for solenopsis mealybug. Results showed significant synergistic effects of 0.06% organic Si with imidacloprid solution against third-instar P. solenopsis nymphs and adult females. However, the percentage mortalities increased remarkably after P. solenopsis was exposed to 100, 50, and 25 mg a.i./L of imidacloprid combined with organic Si. For the third-instar nymphs, these values increased to 100%, 100%, and 92.5%, respectively; for the adult females, these values increased to 100%, 100%, and 82.4%, respectively. After 5 days, the percentage mortalities reached 84.7%, 56.1%, and 39.7% when the third-instar nymphs were exposed to 100, 50, and 25 mg a.i./L of imidacloprid solution, respectively. The percentage mortalities reached 57.5%, 38.9%, and 26.2% when adult females were exposed to the same imidacloprid solutions, respectively. Organic Si alone elicited toxicity to P. solenopsis. The percentage mortalities of the first-, second-, and third-instar nymphs and the adult females were 76.9%, 47.5%, 39.2%, and 18.9%, respectively. Field data showed that imidacloprid combined with organic Si caused sustainable control of P. solenopsis. The percentage mortalities of P. solenopsis reached maximum values (approximately 99.9%) after 21 days. Thus, the combined treatment with imidacloprid and organic Si is synergistically more effective than the individual use of these substances against third-instar P. solenopsis nymphs and adult females.
In this study, the effects of organic silicon (Si) on the toxicity of imidacloprid to a new invasive mealybug, Phenacoccus solenopsis (Hemiptera: Pseudococcidae), infesting Portulaca grandiflora (Caryophyllales: Portulacaceae) plants were evaluated using spotting and dipping methods under laboratory and field conditions to improve management strategies for solenopsis mealybug. Results showed significant synergistic effects of 0.06% organic Si with imidacloprid solution against third-instar P. solenopsis nymphs and adult females. However, the percentage mortalities increased remarkably after P. solenopsis was exposed to 100, 50, and 25 mg a.i./L of imidacloprid combined with organic Si. For the third-instar nymphs, these values increased to 100%, 100%, and 92.5%, respectively; for the adult females, these values increased to 100%, 100%, and 82.4%, respectively. After 5 days, the percentage mortalities reached 84.7%, 56.1%, and 39.7% when the third-instar nymphs were exposed to 100, 50, and 25 mg a.i./L of imidacloprid solution, respectively. The percentage mortalities reached 57.5%, 38.9%, and 26.2% when adult females were exposed to the same imidacloprid solutions, respectively. Organic Si alone elicited toxicity to P. solenopsis. The percentage mortalities of the first-, second-, and third-instar nymphs and the adult females were 76.9%, 47.5%, 39.2%, and 18.9%, respectively. Field data showed that imidacloprid combined with organic Si caused sustainable control of P. solenopsis. The percentage mortalities of P. solenopsis reached maximum values (approximately 99.9%) after 21 days. Thus, the combined treatment with imidacloprid and organic Si is synergistically more effective than the individual use of these substances against third-instar P. solenopsis nymphs and adult females.
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Yazar: Jun HUANG

Yazar: Juan ZHANG

Yazar: Daoze WANG

Yazar: Lili ZHANG

Yazar: Yijuan XU

Yazar: Mingjiang LI

Bibtex @ { tbtkagriculture137942, journal = {Turkish Journal of Agriculture and Forestry}, issn = {1300-011X}, eissn = {1303-6173}, address = {TÜBİTAK}, year = {2014}, volume = {38}, pages = {207 - 213}, doi = {10.3906/sag-1304-23}, title = {Do organic silicon and imidacloprid synergistically induce toxicity to the new invasive mealybug Phenacoccus solenopsis Tinsley on Portulaca grandiflora plants?}, key = {cite}, author = {XU, Yijuan and LI, Mingjiang and ZHANG, Lili and HUANG, Jun and ZHANG, Juan and WANG, Daoze} }
APA HUANG, J , ZHANG, J , WANG, D , ZHANG, L , XU, Y , LI, M . (2014). Do organic silicon and imidacloprid synergistically induce toxicity to the new invasive mealybug Phenacoccus solenopsis Tinsley on Portulaca grandiflora plants?. Turkish Journal of Agriculture and Forestry, 38 (2), 207-213. DOI: 10.3906/sag-1304-23
MLA HUANG, J , ZHANG, J , WANG, D , ZHANG, L , XU, Y , LI, M . "Do organic silicon and imidacloprid synergistically induce toxicity to the new invasive mealybug Phenacoccus solenopsis Tinsley on Portulaca grandiflora plants?". Turkish Journal of Agriculture and Forestry 38 (2014): 207-213 <http://dergipark.gov.tr/tbtkagriculture/issue/11574/137942>
Chicago HUANG, J , ZHANG, J , WANG, D , ZHANG, L , XU, Y , LI, M . "Do organic silicon and imidacloprid synergistically induce toxicity to the new invasive mealybug Phenacoccus solenopsis Tinsley on Portulaca grandiflora plants?". Turkish Journal of Agriculture and Forestry 38 (2014): 207-213
RIS TY - JOUR T1 - Do organic silicon and imidacloprid synergistically induce toxicity to the new invasive mealybug Phenacoccus solenopsis Tinsley on Portulaca grandiflora plants? AU - Jun HUANG , Juan ZHANG , Daoze WANG , Lili ZHANG , Yijuan XU , Mingjiang LI Y1 - 2014 PY - 2014 N1 - doi: 10.3906/sag-1304-23 DO - 10.3906/sag-1304-23 T2 - Turkish Journal of Agriculture and Forestry JF - Journal JO - JOR SP - 207 EP - 213 VL - 38 IS - 2 SN - 1300-011X-1303-6173 M3 - doi: 10.3906/sag-1304-23 UR - http://dx.doi.org/10.3906/sag-1304-23 Y2 - 2018 ER -
EndNote %0 Turkish Journal of Agriculture and Forestry Do organic silicon and imidacloprid synergistically induce toxicity to the new invasive mealybug Phenacoccus solenopsis Tinsley on Portulaca grandiflora plants? %A Jun HUANG , Juan ZHANG , Daoze WANG , Lili ZHANG , Yijuan XU , Mingjiang LI %T Do organic silicon and imidacloprid synergistically induce toxicity to the new invasive mealybug Phenacoccus solenopsis Tinsley on Portulaca grandiflora plants? %D 2014 %J Turkish Journal of Agriculture and Forestry %P 1300-011X-1303-6173 %V 38 %N 2 %R doi: 10.3906/sag-1304-23 %U 10.3906/sag-1304-23
ISNAD HUANG, Jun , ZHANG, Juan , WANG, Daoze , ZHANG, Lili , XU, Yijuan , LI, Mingjiang . "Do organic silicon and imidacloprid synergistically induce toxicity to the new invasive mealybug Phenacoccus solenopsis Tinsley on Portulaca grandiflora plants?". Turkish Journal of Agriculture and Forestry 38 / 2 (Mayıs 2014): 207-213. http://dx.doi.org/10.3906/sag-1304-23