Statewide Efficacy Assessment of Insect Growth Regulators Against Aedes albopictus (Diptera: Culicidae) in Sabah, Malaysia: An Alternative Control Strategy?

2021 ◽  
Author(s):  
N M R Elia-Amira ◽  
C D Chen ◽  
V L Low ◽  
K W Lau ◽  
A Haziqah-Rashid ◽  
...  
Keyword(s):  
Aedes Albopictus ◽  
Growth Regulators ◽  
Control Strategy ◽  
Chitin Synthesis ◽  
Alternative Control ◽  
Insect Growth Regulators ◽  
Insect Growth ◽  
Efficacy Assessment ◽  
First Time ◽  
Juvenile Hormone Mimics

Abstract The efficacy of three groups of insect growth regulators, namely juvenile hormone mimics (methoprene and pyriproxyfen), chitin synthesis inhibitors (diflubenzuron and novaluron), and molting disruptor (cyromazine) was evaluated for the first time, against Aedes albopictus Skuse (Diptera: Culicidae) larvae from 14 districts in Sabah, Malaysia. The results showed that all field populations of Ae. albopictus were susceptible towards methoprene, pyriproxyfen, diflubenzuron, novaluron, and cyromazine, with resistance ratio values ranging from 0.50–0.90, 0.60–1.00, 0.67–1.17, 0.71–1.29, and 0.74–1.07, respectively. Overall, the efficacy assessment of insect growth regulators in this study showed promising outcomes and they could be further explored as an alternative to conventional insecticides.

Evaluation of Insect Growth Regulators Against Field-Collected Aedes aegypti and Aedes albopictus (Diptera: Culicidae) from Malaysia

2015 ◽  
Vol 52 (2) ◽  
pp. 199-206 ◽  
Author(s):  
K. W. Lau ◽  
C. D. Chen ◽  
H. L. Lee ◽  
Y. Norma-Rashid ◽  
M. Sofian-Azirun
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Growth Regulators ◽  
Insect Growth Regulators ◽  
Insect Growth

Bioefficacy of Insect Growth Regulators Against Aedes albopictus (Diptera: Culicidea) From Sarawak, Malaysia: A Statewide Survey

2018 ◽  
Vol 111 (3) ◽  
pp. 1388-1394 ◽  
Author(s):  
Koon Weng Lau ◽  
Chee Dhang Chen ◽  
Han Lim Lee ◽  
Van Lun Low ◽  
Mohd Sofian-Azirun
Keyword(s):  
Aedes Albopictus ◽  
Growth Regulators ◽  
Insect Growth Regulators ◽  
Insect Growth

Efficacy of Insect Growth Regulators as Grain Protectants against Two Stored-Product Pests in Wheat and Maize

2012 ◽  
Vol 75 (5) ◽  
pp. 942-950 ◽  
Author(s):  
NICKOLAS G. KAVALLIERATOS ◽  
CHRISTOS G. ATHANASSIOU ◽  
BASILEIOS J. VAYIAS ◽  
ŽELJKO TOMANOVIĆ
Keyword(s):  
Juvenile Hormone ◽  
Growth Regulators ◽  
Prostephanus Truncatus ◽  
Progeny Production ◽  
Chitin Synthesis ◽  
Insect Growth Regulators ◽  
Insect Growth ◽  
Chitin Synthesis Inhibitors ◽  
Grain Protectants ◽  
Juvenile Hormone Analogues

Insect growth regulators (IGRs) (two juvenile hormone analogues [fenoxycarb and pyriproxifen], four chitin synthesis inhibitors [diflubenzuron, flufenoxuron, lufenuron, and triflumuron], one ecdysteroid agonist [methoxyfenozide], and one combination of chitin synthesis inhibitors and juvenile hormone analogues [lufenuron plus fenoxycarb]) were tested in the laboratory against adults of Prostephanus truncatus in maize and against adults of Rhyzopertha dominica in wheat. The tested IGRs were applied in maize at three doses (1, 5, and 10 ppm) and assessed at three temperature levels (20, 25, and 30°C) in the case of P. truncatus, while in the case of R. dominica the above doses were assessed only at 25°C in wheat. In addition to progeny production, mortality of the treated adults after 14 days of exposure in the IGR-treated commodities was assessed. All IGRs were very effective (>88.5% suppression of progeny) against the tested species at doses of ≥5 ppm, while diflubenzuron at 25°C in the case of P. truncatus or lufenuron and pyriproxyfen in the case of R. dominica completely suppressed (100%) progeny production when they were applied at 1 ppm. At all tested doses, the highest values of R. dominica parental mortality were observed in wheat treated with lufenuron plus fenoxycarb. Temperature at the levels examined in the present study did not appear to affect the overall performance in a great extent of the tested IGRs in terms of adult mortality or suppression of progeny production against P. truncatus in treated maize. The tested IGRs may be considered viable grain protectants and therefore as potential components in stored-product integrated pest management.

scholarly journals Existing potentials in Insect Growth Regulators (IGR) for crop pest control

2021 ◽  
Vol 10 (1) ◽  
pp. e35910111726
Author(s):  
Raul Apolinário ◽  
Denise Feder
Keyword(s):  
Pest Control ◽  
Growth Regulators ◽  
Control Methods ◽  
Ovicidal Activity ◽  
Chitin Synthesis ◽  
Insect Growth Regulators ◽  
Crop Pests ◽  
Digital Platforms ◽  
Insect Growth ◽  
Crop Pest

The aim of this review is to explore the potentials existing in insecticides that are considered Insect Growth Regulators (IGR) for the control of insects considered crop pests, with an observation of the main mechanisms of neuroendocrine modifications, development and viability of the species used as study models. The data search on digital platforms, as well as the screening of materials about crop pests, resulted in 74 IGR references and their potentials. The analysis of the information found demonstrated a greater use in works of compounds belonging to chitin synthesis inhibitors class; and orders such as Hemiptera, Lepidoptera, Coleoptera, Orthoptera, Thysanoptera and Diptera were represented in the studies. The main types of activities reunited were morphological and anatomical modifications, reproductive modifications, alterations in developmental stage, alterations in developmental period, ovicidal activity, larvicidal/ninficidal activity and fagoinhibition. The congregated knowledge about the main pests used as study models, the main IGRs compounds and their biological potentials allow an evaluation of their use as an informative source for crop pest control methods.

Insect growth regulators. Analogs of TH-6038 and TH-6040

1976 ◽  
Vol 24 (5) ◽  
pp. 1065-1068 ◽  
Author(s):  
James E. Oliver ◽  
Albert B. DeMilo ◽  
Charles F. Cohen ◽  
Thomas J. Shortino ◽  
William E. Robbins
Keyword(s):  
Growth Regulators ◽  
Insect Growth Regulators ◽  
Insect Growth
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