Natural Enemies of the White Peach Scale, Pseudaulacaspis pentagona (Homoptera: Coccidae), in Florida

1975 ◽  
Vol 58 (1) ◽  
pp. 15 ◽  
Author(s):  
F. A. Collins ◽  
W. H. Whitcomb
Keyword(s):  
Natural Enemies ◽  
Pseudaulacaspis Pentagona ◽  
White Peach Scale

The Seasonal History of the White Peach Scale (Homoptera: Diaspididae) and its Hymenopteran Natural Enemies in North Carolina

1990 ◽  
Vol 25 (2) ◽  
pp. 303-310 ◽  
Author(s):  
Christine A. Nalepa ◽  
John R. Meyer
Keyword(s):  
North Carolina ◽  
Natural Enemies ◽  
Fourth Generation ◽  
Adult Males ◽  
Pseudaulacaspis Pentagona ◽  
History Of ◽  
Hymenopteran Parasites ◽  
White Peach Scale ◽  
Seasonal History ◽  
Peach Orchard

Hymenopteran parasites (adults) and mobile stages (crawlers, adult males) of white peach scale, Pseudaulacaspis pentagona (Targioni-Tozzetti), were monitored biweekly (1986) or weekly (1987) in a peach orchard from April to December. The scale exhibited three peaks of crawler emergence, and a partial fourth generation was observed in both years. Three species of hymenopteran parasites consistently collected from traps were the primary parasites Encarsia berlesi (Howard) and Aphytis proclia (Walker), and the hyperparasite Marietta carnesi (Howard). Populations of all three parasites showed seasonal peaks of activity that differed in the two years of this study. Winter samples taken in 1985, and from 1987 through 1989 indicated differences between years in the ratio of parasites to hyperparasites overwintering.

scholarly journals The Potential Global Distribution of the White Peach Scale Pseudaulacaspis pentagona (Targioni Tozzetti) under Climate Change

Forests ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 192
Author(s):  
Yunyun Lu ◽  
Qing Zhao ◽  
Lifang Cheng ◽  
Ling Zhao ◽  
Hufang Zhang ◽  
...  
Keyword(s):  
Potential Distribution ◽  
Climate Scenario ◽  
Suitable Habitat ◽  
Distribution Map ◽  
Water Transportation ◽  
Current Climate ◽  
Climatic Scenarios ◽  
Pseudaulacaspis Pentagona ◽  
White Peach Scale ◽  
Suitable Area

The white peach scale Pseudaulacaspis pentagona (Hemiptera: Diaspididae) is a pest that causes significant damage to more than 221 genera of host plants in more than 112 countries. P. pentagona primarily feeds on mulberry, peach, and tea, and this leads to the loosening of the epidermis of trees, which damages nutrient and water transportation in the branches, leading to branch death. P. pentagona is native to China and Japan, and has become an invasive species all over the world. However, the potential distribution of P. pentagona remains unclear. In this study, a potential distribution map of P. pentagona was developed using current and future climate information using MaxEnt. The model indicates that Asia, Europe, South America and North America are a highly suitable habitat range for this species. The MaxEnt models for the potential distribution of P. pentagona for the 2050s and 2070s suggest that in the case of no significant increase or even decrease in the highly suitable area, the suitable area increased significantly on any future climatic scenarios. The predicted area gain in the suitable habitat is 2.82 × 107 km2, including more of Asia, such as China, Japan, and Mongolia, and also including India, Vietnam, Romania, Ukraine, Poland, Hungary, Austria, The Czech Republic, Italy, and Germany in Europe, which shows an increase of 24.5% over the current habitat on RCP8.5 emission scenarios for the 2070s. With the warming of the climate, significant expansions are predicted in the suitable area, especially in Europe and East Asia. Under RCP8.5 for the 2050s, the model-predicted that the area of suitable habitat in China and the Korean Peninsula gains an increase of 18.8% over the current suitable habitat area. Under other climate scenarios, RCP8.5-2070s, the suitable areas were the largest, compared to projection for the current climate scenario (ca. 24.1% increase) which increased to 7.89 × 106 km2. In Europe, under RCP8.5 for the 2070s, the highly suitable areas were the largest, compared to the projection for the current climate scenario (ca. 46.2% increase), which increased to 8.64 × 105 km2, the area of suitable habitat suitability increased to 4.99 × 106 km2 (29.2% increase of the current condition). Potential increases or decreases in distribution ranges were modeled under future climatic scenarios. This study suggests that the most important factor that influenced current distribution of this pest was temperature, and BIO3 (isothermality) was the most important factor that contributed to 48.6% of the potential distribution map. Given the rapid spread of P. pentagona and the serious risk this species poses to local ecosystems, warning modelling and practical strategies to prevent the establishment and expansion of this species should be sought. This distribution map will help governments to identify areas that are suitable for current and future infestations, and to optimize pest management strategies.

Effect of Dormant Oil Treatments on White Peach Scale (Homoptera: Diaspididae) and its Overwintering Parasite Complex

1991 ◽  
Vol 26 (1) ◽  
pp. 27-32 ◽  
Author(s):  
John R. Meyer ◽  
Christine A. Nalepa
Keyword(s):  
North Carolina ◽  
Coastal Plain ◽  
Pseudaulacaspis Pentagona ◽  
Hymenopteran Parasites ◽  
White Peach Scale ◽  
Parasite Complex ◽  
Peach Orchard

The effect of dormant oil treatments on the overwintering parasite complex of white peach scale, Pseudaulacaspis pentagona (Targioni-Tozzetti) was evaluated in a peach orchard in the southern coastal plain of North Carolina in 1988 and 1989. Oil treatments resulted in significant reductions in the emergence of adult hymenopteran parasites in both years. However, mortality was not complete, and a sufficient number of parasites survived to repopulate the orchard in spring.

scholarly journals Suitability of Five Horticulturally Important Armored Scale Insects as Hosts for an Exotic Predaceous Lady Beetle1

1993 ◽  
Vol 11 (1) ◽  
pp. 28-30 ◽  
Author(s):  
Brenda C. Bull ◽  
Michael J. Raupp ◽  
Mark R. Hardin ◽  
Clifford S. Sadof
Keyword(s):  
Pupal Stage ◽  
The United States ◽  
Scale Insects ◽  
Armored Scale ◽  
Aspidiotus Nerii ◽  
Pseudaulacaspis Pentagona ◽  
Chilocorus Kuwanae ◽  
San Jose Scale ◽  
White Peach Scale ◽  
Euonymus Scale

Abstract Chilocorus kuwanae (Sylvestri) was imported from Korea to the United States for release against the euonymus scale (Unaspis euonymi (Comstock)). Field observations suggest that C. kuwanae feeds on a number of other armored scale insects, including white peach scale (Pseudaulacaspis pentagona (Targionni-Tozzeti)) and obscure scale (Melanaspis obscura (Comstock)). However, such observations have not been rigorously examined under controlled conditions. Our laboratory investigations indicate that C. kuwanae survives and reproduces well on San Jose scale (Quadraspidiotus perniciosus (Comstock)), in addition to euonymus scale. Fecundity was reduced in adults fed white peach scale. Few larvae survived to adulthood when fed oleander scale (Aspidiotus nerii (Bouche)). Adults failed to reproduce on obscure scale; none of the larvae fed this host survived to the pupal stage.

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