The effectiveness of wax secretion on chemical control in some mealybug species

Ulusoy, Selçuk; Kahya, Doğancan; Bılgın, Mustafa Gokhan; Apalak, Alaittin

doi:10.1016/j.aspen.2022.101954

Cited by 5 publications

(1 citation statement)

References 21 publications

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“…The thermal constants estimated in the present study could be useful to predict the peaks of young nymphs of P. longispinus, which are susceptible to insecticides. Many active ingredients have low efficacy against adult females because they are protected by wax (Ulusoy et al 2022). If it is necessary to spray with insecticides, we recommend spraying against the first nymphal peak (1200 DD from January 1 st ) because persimmon fruit is not fully developed, and mealybug developmental stages are more exposed and susceptible to insecticides.…”

Section: Discussionmentioning

confidence: 99%

Mealybugs in Mediterranean persimmon: fruit infestation, seasonal trend and effect of climate change

Plata,

Gómez-Martínez,

Beitia

et al. 2023

entomologia

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Mealybugs (Hemiptera: Pseudococcidae) are the main pest of persimmon in Spain, the second producer in the world. In order to develop an Integrated Pest Management (IPM) program, it is necessary to identify the main mealybug species, determine their phenology, and develop tools to predict damage. To do this, we sampled 17 orchards from the main persimmon producing area in Spain over two years. Pseudococcus longispinus (Targioni-Tozzeti) was the most abundant and widely distributed species. This mealybug species completed three generations per year and reached peak density just before harvest. Fruit infestation at harvest was highly correlated with mealybug density in spring and summer. The estimated thermal constants to complete development and one generation were 512.5 and 956.3 degree days, respectively. Based on climate change predictions, crop damage caused by the third generation of P. longispinus will increase in 2040 and the mealybug will complete a fourth generation by 2080. Pseudococcus longispinus has become the main pest for Mediterranean persimmon and damage produced by this mealybug may be exacerbated by climate change. This work provides essential data to design a sampling protocol and determine intervention times and thresholds against this mealybug.

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Section: Discussionmentioning

confidence: 99%