Seasonal Abundance of the Brown Citrus Aphid, Toxoptera citricida, (Homoptera: Aphididae) and Its Natural Enemies in Puerto Rico

Aphids associated with papaya plants were collected from two sites in Puerto Rico (Isabela and Corozal) and three farms in Homestead, Florida. Between the two regions, Florida and Puerto Rico, twenty-one species of aphids from 12 genera were identified: Aphis sp., Aphis illinoisensis Shimer, Aphis spiraecola Patch, Aphis gossypii Glover, Aphis craccivora Koch, Aphis iddletonii (Thomas), Aphis nerii Boyer de Fonscolombe, Hyperomyzus carduellinus (Theobald), Hysteroneura setariae (Thomas), Lipaphis pseudobrassicae (Davis), Picturaphis sp., Pentalonia nigronervosa Coquerel, Schizaphis graminum (Rondani), Sarucallis kahawaluokalani (Kirkaldy), Shinjia orientalis (Mordvilko), Schizaphis rotundiventris (Signoret), Toxoptera citricida (Kilkardy), Toxoptera aurantii (Boyer de Fonscolombe), Tetraneura nigriabdominalis (Sasaki), Uroleucon ambrosiae (Thomas), and Uroleucon pseudoambrosiae (Olive). The number of species was greater in Florida (n = 14) than in Puerto Rico (n = 11). Differences among species were also found between sites in Puerto Rico, with 10 species in Corozal and six in Isabela. Only one species, A. illinoisensis, was common at all sites sampled, whereas three additional species, A. spiraecola, A. gossypii, and A. craccivora were collected in both the Corozal, Puerto Rico, and the Florida areas. The difference in species composition between Puerto Rican sites (Corozal and Isabela) and between localities (Florida and Puerto Rico) is probably associated with differences in agricultural crops or weeds present in each region.

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Temporal asynchrony, spatial segregation and seasonal abundance of aphids on apple trees

ENTOMOLOGIA HELLENICA ◽

10.12681/eh.11612 ◽

2017 ◽

Vol 17 ◽

pp. 12 ◽

Cited By ~ 2

Author(s):

D. Perdikis ◽

D. Lykouressis ◽

G. Mitropoulou ◽

P. Tsiantis

Keyword(s):

Species Composition ◽

Natural Enemies ◽

Aphid Species ◽

Apple Orchard ◽

Spatial Segregation ◽

Seasonal Abundance ◽

Eriosoma Lanigerum ◽

Apple Trees ◽

Aphis Pomi ◽

Dysaphis Plantaginea

The species composition and seasonal abundance of aphids and their natural enemies were investigated in an apple orchard located in central Peloponnese. For that purpose shoots were collected at weekly intervals. The aphid species Aphis pomi De Geer (Hemiptera: Aphididae), Dysaphis plantaginea (Passerini) (Hemiptera: Aphididae) and Eriosoma lanigerum (Hausmann) (Hemiptera: Eriosomatidae) were recorded. In both years of the study, A. pomi developed higher populations than the other two species. The population of A. pomi was high in June and July. D. plantaginea was present in April and May, with high numbers mainly in May, whilst E. lanigerum was recorded in low numbers from May to July. The number of aphids was not found to differ significantly between samples collected from the northern and southern part of the trees. The species composition of aphid population on each sampled shoot, documented spatial segregation between A. pomi and D. plantaginea. It was proved that the eggs were more commonly laid near the buds of the central part of the twigs. The natural enemies found were predators belonging to the families of Coccinellidae, Chrysopidae, Syrphidae and Anthocoridae. Generally, their numbers were low.

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Seasonal Abundance of Thrips, Thrips tabaci Lindeman and its Natural Enemies on Kharif Onion

International Journal of Current Microbiology and Applied Sciences ◽

10.20546/ijcmas.2019.802.171 ◽

2019 ◽

Vol 8 (02) ◽

pp. 1476-1479

Author(s):

Deepika Yadav ◽

S.K. Khinchi ◽

Purushotam Sharma ◽

Hitesh Jangir

Keyword(s):

Natural Enemies ◽

Thrips Tabaci ◽

Seasonal Abundance

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NEW RECORDS OF NATURAL ENEMIES OF THE PEPPER WEEVIL, ANTHONOMUS EUGENII CANO (COLEOPTERA: CURCULIONIDAE), IN PUERTO RICO

The Journal of Agriculture of the University of Puerto Rico ◽

10.46429/jaupr.v87i1-2.1131 ◽

1969 ◽

Vol 87 (1-2) ◽

pp. 69-72 ◽

Cited By ~ 1

Author(s):

Eduardo Correa-Galíndez ◽

Arístides Armstrong ◽

Carlos Cruz ◽

Edwin Abreu

Keyword(s):

Puerto Rico ◽

Natural Enemies ◽

New Records ◽

Parasitoid Species ◽

Anthonomus Eugenii ◽

Pepper Weevil

Two parasitoid species (Catolaccus hunteri and Urosigalphus mexicanus) were recovered from the larvae of A. eugenii from samples collected at Lajas, Puerto Rico.

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STUDIES ON SEASONAL ABUNDANCE OF WOOLLY APPLE APHID AND ITS NATURAL ENEMIES IN THE MID HILLS OF HIMACHAL PRADESH

Acta Horticulturae ◽

10.17660/actahortic.2005.696.69 ◽

2005 ◽

pp. 395-398 ◽

Cited By ~ 1

Author(s):

A. Sood ◽

P.R. Gupta

Keyword(s):

Natural Enemies ◽

Himachal Pradesh ◽

Seasonal Abundance ◽

Woolly Apple Aphid

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Populations of Stink Bugs (Heteroptera: Pentatomidae) and their Natural Enemies in Peanuts

Journal of Entomological Science ◽

10.18474/0749-8004-43.2.191 ◽

2008 ◽

Vol 43 (2) ◽

pp. 191-207 ◽

Cited By ~ 33

Author(s):

Glynn Tillman

Keyword(s):

Natural Enemies ◽

Developmental Stages ◽

Seasonal Abundance ◽

Stink Bug ◽

Stink Bugs ◽

Geocoris Punctipes ◽

Oebalus Pugnax ◽

Heteroptera Pentatomidae ◽

Telenomus Podisi ◽

On Farm

The objective of this on-farm study was to determine if peanuts harbor populations of stink bugs (Heteroptera: Pentatomidae) and their natural enemies in Georgia. Eight species of phytophagous stink bugs were found in peanuts over the 5-yr study. The predominant stink bug species were Nezara viridula (L.), Euschistus servus (Say), Euschistus quadrator (Rolston), and Oebalus pugnax pugnax (F.). The remaining 4 species, Acrosternum hilare (Say), Euschistus tristigmus (Say), Euschistus ictericus (L.), and Thyanta custator accerra McAtee, were found in relatively low numbers. All developmental stages of N. viridula, E. servus, E. quadrator, A. hilare, and O. p. pugnax were collected at various times in the study indicating that these 5 species of stink bugs were developing on this crop. Seasonal abundance of N. viridula and E. servus nymphs and adults provided further support that these 2 species of stink bugs developed on peanuts. At least 1 generation of N. viridula and E. servus occurred in peanuts each year, and generally some of the adults that developed on peanuts oviposited on peanuts producing another generation of nymphs in this crop. Because only adults of T. c. accerra, E. tristigmus, and E. ictericus were found in peanuts, these 3 stink bug species probably were not developing on this crop. Adult stink bugs were parasitized by the tachinid parasitoids Trichopoda pennipes (F.) and Cylindromyia spp. Stink bug eggs were parasitized by the scelionids, Trissolcus basalis (Wollaston), Trissolcus thyantae Ashmead, Trissolcus brochymenae (Ashmead), Telenomus podisi Ashmead, and Gryon obesum Masner, and an unknown encyrtid species. Geocoris punctipes (Say), Geocoris uliginosus (Say), Orius insidiosus (Say), Podisus maculiventris (Say), and Oxyopes salticus Hentz preyed on stink bugs in peanuts. Peanuts harbor populations of stink bugs and their natural enemies, and thus the role peanuts play in landscape ecology of stink bugs needs to be ascertained to better understand how to manage stink bug populations in landscapes in which peanuts are associated with other crops.

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