scholarly journals First Record of Aenasius arizonensis (Hymenoptera: Encyrtidae) as A solitary, Endoparasitoid of Cotton Mealybug, Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) Infesting Different Host Plants at Giza Region in Egypt

2017 ◽  
Vol 10 (7) ◽  
pp. 127-134 ◽  
Author(s):  
Angel Attia ◽  
Kamal Awadallah ◽  
John Noyes
2021 ◽  
Author(s):  
Paris Lambdin

Abstract This mealybug species has the ability to increase rapidly in population size and spread to cover vast areas where host plants occur, in a relatively short period of time. It has been reported from over 200 hosts. Since the original description of P. solenopsis from Atriplex canescens in New Mexico, USA in 1898, no reports on its presence were reported until 1967 (McKenzie, 1967; McDaniel, 1975). Later, Fuchs et al. (1991) reported small, sporadic populations on cotton in Runnels County, Texas, USA in 1988 that spread 75 to 200 miles from the original site with contiguous populations by 1990. With the increase in international trade over the last few decades, this invasive pest has been collected and identified on host material at international ports and in greenhouses outside its native range (Jansen, 2004). As such, P. solenopsis has become established in the Afrotropical, Australasian, Nearctic, Neotropical, and Oriental regions.


2018 ◽  
Vol 68 (4) ◽  
pp. 333-352 ◽  
Author(s):  
V.S. Nagrare ◽  
Bhausaheb Naikwadi ◽  
Vrushali Deshmukh ◽  
S. Kranthi

Abstract The cotton mealybug, Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae), is an invasive pest of cotton, apart from several other important crops, and poses a serious threat to agricultural economy all over the world. Studies on the biology and population growth parameters of P. solenopsis on the five most preferred host plants, namely cotton (Gossypium hirsutum L.) (Malvaceae), China rose (Hibiscus rosa-sinensis L.) (Malvaceae), tomato (Lycopersicon esculentum Mill.) (Solanaceae), congress grass (Parthenium hysterophorus L.) (Asteraceae) and okra (Abelmoschus esculentus (L.) Moench) (Malvaceae) were undertaken in the laboratory under controlled temperature and relative humidity. The mean cumulative development time of females was 16.61 days on cotton, 14.16 days on China rose, 14.13 days on okra, 14.00 days on tomato and 13.57 days on congress grass. The longest oviposition period was recorded on cotton (15.20 ± 1.87 days), while it was in the range of 9-10 days in the remaining host plants. Females lived longer (27.40 ± 1.76 days) when reared on cotton, while their life was shortest on tomato (14.60 ± 0.96 days). The highest fecundity was observed on cotton (328.30 ± 23.42), whereas it was found to be in the range 178-212 on the other hosts. The survival frequency from crawler to adult in females was highest on cotton (27.53%), while it was the lowest on tomato (15.87%). The highest net reproductive rate (284.3 females/female/generation), mean length of a generation (31.24 days), and intrinsic rate of increase (0.19 day−1) were recorded on cotton. The finite rate of increase was in the range of 1.18-1.20 (females/female/day) for all the selected host plants. The weekly multiplication rate was highest on China rose and congress grass (3.78), while it was the least on tomato (3.28). The corrected generation time was dissimilar in all the selected host plants, being highest on cotton (31.39 days) and the least on congress grass (27.71 days). The doubling time was shortest on congress grass (3.61 days), while it was longest on tomato (4.11 days). Hence, the host plant species significantly affects population growth of P. solenopsis.


2016 ◽  
Vol 56 (2) ◽  
pp. 111-115 ◽  
Author(s):  
El-Zahi Saber El-Zahi ◽  
Safwat Abd El-Salam Aref ◽  
Samy Kamal Mohammad Korish

Abstract The cotton mealybug, Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) is a polyphagous sap sucking insect with a wide geographical and host range causing severe losses in economically important crops. This study represents the first record of P. solenopsis as a new insect attacking cotton plants (Gossypium barbadense var. Giza 86) in Kafr El-Sheikh governorate, Egypt. The insect was noticed on cotton plants for the first time during its growing season of 2014. The mealybug specimens were collected from infested cotton plants and identified as P. solenopsis. In an attempt to control this pest, eight toxic materials viz., imidacloprid, thiamethoxam, flonicamid, emamectin-benzoate, chlorpyrifos, methomyl, deltamethrin and mineral oil (KZ-oil), belonging to different chemical groups, were tested for their influence against P. solenopsis on cotton under field conditions. Methomyl, imidacloprid, thiamethoxam and chlorpyrifos showed the highest efficacy against P. solenopsis recording 92.3 to 80.4% reduction of the insect population. Flonicamid, emamectin-benzoate and KZ-oil failed to exhibit sufficient P. solenopsis control.


2018 ◽  
Vol 46 (1) ◽  
pp. 45-55 ◽  
Author(s):  
Malkie Spodek ◽  
Yair Ben-Dov ◽  
Lily Mondaca ◽  
Alex Protasov ◽  
Eyal Erel ◽  
...  

2015 ◽  
Vol 55 (1) ◽  
pp. 48-51 ◽  
Author(s):  
Samah Sayed Ibrahim ◽  
Fatma Abdelhalim Moharum ◽  
Nesreen Mohamed Abd El-Ghany

Abstract Recently, the mealybug Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) was recorded as a new pest on tomato plants (Lycopersicon esculentum Mill) growing in Egypt. The mealybugs specimens were collected from tomato plants in the Qalyoubia governorate during summer season of 2014. The mealybug was identified as P. solenopsis based on the morphological characters and taxonomic key of this species. This study represents the first record of P. solenopsis as a new insect pest attacking tomato plants in Egypt


Bragantia ◽  
2013 ◽  
Vol 71 (4) ◽  
pp. 467-470 ◽  
Author(s):  
Carlos Alberto Domingues da Silva

The cotton mealybug, Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) has been reported occurring in several countries causing severe losses in economically important crops, including cotton. Based on information reported by farmers in the regions of the Southwest and Middle São Francisco, Bahia and also in the regions of the Agreste and Semi-arid of the Paraiba State, high infestations of cotton mealybugs have occurred in these regions during the cotton season of 2007 and 2008. The cotton mealybug was identified as P. solenopsis and this represents the first record of this insect attacking cotton in Brazil.


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