scholarly journals A new pest of ficus in California: Macrohomotoma gladiata Kuwayama, 1908 (Hemiptera: Psylloidea: Homotomidae), new to North America

Check List ◽  
2016 ◽  
Vol 12 (3) ◽  
Author(s):  
Alessandra Rung
Keyword(s):  
North America ◽  
New Pest

scholarly journals A new pest of ficus in California: Macrohomotoma gladiata Kuwayama, 1908 (Hemiptera: Psylloidea: Homotomidae), new to North America

Check List ◽  
2016 ◽  
Vol 12 (3) ◽  
pp. 1882 ◽  
Author(s):  
Alessandra Rung
Keyword(s):  
North America ◽  
Diagnostic Features ◽  
First Time ◽  
New Pest

A new psyllid pest of ficus, Macrohomotoma gladiata (Hemiptera: Sternorrhyncha: Psylloidea), is reported for the first time from North America (California, U.S.A.). Notes on another adventive psyllid species that has been collected from ficus in California, Homotoma ficus, are given, together with a list diagnostic features that separate between M. gladiata and H. ficus.

Cabbage seedpod weevil (Coleoptera: Curculionidae): new pest of canola in northeastern North America

2001 ◽  
Vol 133 (5) ◽  
pp. 709-711 ◽  
Author(s):  
Jacques Brodeur ◽  
Luc-André Leclerc ◽  
Marc Fournier ◽  
Michèle Roy
Keyword(s):  
North America ◽  
Seed Germination ◽  
Seed Weight ◽  
Oil Content ◽  
Yield Losses ◽  
Northeastern North America ◽  
Ceutorhynchus Obstrictus ◽  
Cabbage Seedpod Weevil ◽  
Cruciferous Plants ◽  
New Pest

The cabbage seedpod weevil, Ceutorhynchus obstrictus (Marsham) [= C. assimilis (Paykull)] (Colonnelli 1993), is a univoltine species native to Europe that feeds on canola and other oilseed cruciferous plants. The adult overwinters in debris and soil outside fields and colonizes canola at the blooming stage (Dosdall et al. 2001). Eggs are laid singly into the immature pods and each larva consumes five to seven seeds before cutting a hole in the pod to wriggle out and pupate in the soil (Dmoch 1965). Yield losses are difficult to assess because the plant compensates for bud and pod injuries caused by insects or pathogens (Lamb 1989). Nevertheless, pod feeding by larvae causes much damage, as canola yields can be reduced from 15 to 35% (Homan and McCaffrey 1993). Feeding by adults can also be significant, as it can reduce oil content, seed weight, and seed germination (Buntin et al. 1995).

Psila nigricornis Meig. (Diptera: Psilidae), a New Pest of Possible Economic Importance

1952 ◽  
Vol 84 (4) ◽  
pp. 107-107
Author(s):  
R. Glendenning
Keyword(s):  
British Columbia ◽  
North America ◽  
New Record ◽  
Economic Importance ◽  
New Pest

In February, 1951, specimens of chrysanthemum stools received from a nurseryman near Sardis, British Columbia, were found to be injured by maggots. Examination showed dipterous larvae feeding in channels bored in the centres of the roots, crowns, and new shoots.As available literature contained no reference to an insect having this habit in chrysanthemums, material was caged for rearing. Adults began emerging on March 17, and were determined by Mr. J. F. McAlpine, Systematic Entomology, Division of Entomology, Ottawa, as Psila nigricornis Meig. This was a new record for North America.

scholarly journals Sugarcane Aphid (Hemiptera: Aphididae): A New Pest on Sorghum in North America

2016 ◽  
Vol 7 (1) ◽  
pp. 12 ◽  
Author(s):  
Robert D. Bowling ◽  
Michael J. Brewer ◽  
David L. Kerns ◽  
John Gordy ◽  
Nick Seiter ◽  
...  
Keyword(s):  
North America ◽  
Sugarcane Aphid ◽  
New Pest

scholarly journals Efficacy of some insecticides for control of oak lace bug (Corythucha arcuata Say)

Topola ◽  
2021 ◽  
pp. 21-26
Author(s):  
Milan Drekić ◽  
Leopold Poljaković-Pajnik ◽  
Marina Milović ◽  
Branislav Kovačević ◽  
Andrej Pilipović ◽  
...  
Keyword(s):  
North America ◽  
High Efficiency ◽  
Harmful Effect ◽  
Test Results ◽  
Lace Bug ◽  
Lace Bugs ◽  
Active Substances ◽  
New Pest

The oak lace bug (Corythucha arcuata Say) was introduced to Europe from North America in 2000 and was first recorded in Serbia in 2013. It is a very serious oak pest which has harmful effect in both adult and nymph stages of the insect that feeds by sucking the sap on the lower (abaxial) leaf side. As this is a relatively new pest in our country, the possibility of its control by applying insecticides was tested during 2021. The paper presents the test results of three insecticidal active substances: deltamethrin, flonicamid and acetamiprid for the control of oak lace bugs. The insecticide flonicamid did not show sufficient efficacy in the suppression of the oak lace bug, while deltamethrin and acetamiprid have high efficiency for the suppression of the adults and nymphs of the oak lace bug, which recommended them for this purpose.

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