Laboratory Tests of the Susceptibility of Some Forest Insect Pests to Heterorhabditis megidis H90 (Nematoda)

2000 ◽  
Vol 76 (1) ◽  
pp. 76-78 ◽  
Author(s):  
J.E. Saunders ◽  
J.M. Webster
Keyword(s):  
Laboratory Tests ◽  
Insect Pests ◽  
Forest Insect ◽  
Heterorhabditis Megidis

scholarly journals Responses of forest insect pests to climate change: not so simple

2019 ◽  
Vol 35 ◽  
pp. 103-108 ◽  
Author(s):  
Hervé Jactel ◽  
Julia Koricheva ◽  
Bastien Castagneyrol
Keyword(s):  
Climate Change ◽  
Insect Pests ◽  
Forest Insect

Investigations of the chemical control of insect pests of cotton in central Africa. II.—Tests of insecticides with larvae and adults

1966 ◽  
Vol 57 (1) ◽  
pp. 77-91 ◽  
Author(s):  
G. A. Matthews
Keyword(s):  
Chemical Control ◽  
Laboratory Tests ◽  
Insect Pests ◽  
Central Africa ◽  
Heliothis Armigera ◽  
First Instar ◽  
Dry Conditions ◽  
Simulated Rain ◽  
Plant Habit ◽  
Dysdercus Intermedius

Further tests of insecticides, mainly carbaryl, endosulfan, endrin and DDT, for possible use against pests of cotton in Central Africa are described. In laboratory tests in Rhodesia, carbaryl was the most effective against first-instar larvae of Diparopsis castanea Hmps. exposed on leaves, stems and bracts of effective against second-instar larvae of Heliothis armigera (Hb.), to which the insecticides were applied directly, and carbaryl the least.When adults of Dysdercus intermedius Dist. and D. fasciatus Sign. were caged with treated bolls, carbaryl was the most effective, endrin the next and (against the former sp. only) endosulfan the least. Deposits on leaves from 0.5 per cent. sprays of carbaryl, DDT and endosulfan remained effective in dry conditions for two weeks, but application of 0.05–1.0 in of simulated rain reduced their effectiveness immediately, especially that of carbaryl. The effectiveness of deposits was also reduced by plant growth and was affected by plant habit; on a hairy variety the deposits persisted longer than on a glabrous one, partly because the hairs retained them and partly because they made movement of the larvae more difficult.

CONTACT TOXICITY OF 17 INSECTICIDES TO LARVAE OF DIORYCTRIA AMATELLA (LEPIDOPTERA: PYRALIDAE)

1980 ◽  
Vol 112 (5) ◽  
pp. 521-523 ◽  
Author(s):  
Gary L. DeBarr ◽  
Vicki H. Fedde
Keyword(s):  
United States ◽  
North American ◽  
Laboratory Tests ◽  
Insect Pests ◽  
Southern United States ◽  
Contact Toxicity ◽  
Southern Pine ◽  
Lepidoptera Pyralidae

Moths of the genus Dioryctria are important insect pests of North American conifers (Baker 1972). Of the species that occur in the southern United States, e.g., D. clarioralis (Walker), D. disclusa (Heinrich), and D. ebeli Mutuura and Munroe, the southern pine coneworm, Dioryctria amatella (Hulst), is the most destructive (Ebel et al. 1975). Our paper reports the results of laboratory tests aimed at determining the relative toxicities of commercially available or promising experimental insecticides to D. amatella larvae.

NEW SPECIES OF ASCIDAE (ACARINA: MESOSTIGMATA) ASSOCIATED WITH FOREST INSECT PESTS

1971 ◽  
Vol 103 (7) ◽  
pp. 919-942 ◽  
Author(s):  
Evert E. Lindquist
Keyword(s):  
New Species ◽  
North America ◽  
Bark Beetles ◽  
Insect Pests ◽  
Forest Insect ◽  
Three New Species

AbstractThree new species of ascid mites are described and illustrated: Proctolaelaps subcorticalis, Lasioseius corticeus, and Gamasellodes rectiventris. All are subcortical associates of bark beetles in North America.

scholarly journals CANARD CURVES IN THE DYNAMIC MODEL OF FOREST INSECT PESTS

2017 ◽  
Vol 19 (9.2) ◽  
pp. 215-220
Author(s):  
E.V. Troshkina
Keyword(s):  
Dynamic Model ◽  
Insect Pests ◽  
Choristoneura Fumiferana ◽  
Forest Insect ◽  
Dynamics Of Population

The paper is concerned with the investigation of the model of dynamics of population of caterpillar budworm (Choristoneura fumiferana). The system solutions behavior depending on the parameters values has been investigated, conditions of origination of canard curves have been found.

ENTOMOPATHOGENIC VIRUSES: STRATEGIES FOR USE IN FOREST INSECT PEST MANAGEMENT

1980 ◽  
Vol 112 (6) ◽  
pp. 573-584 ◽  
Author(s):  
Oswald N. Morris
Keyword(s):  
Pest Management ◽  
Large Scale ◽  
Insect Pests ◽  
Insect Pest ◽  
Virus Production ◽  
Limiting Factors ◽  
Insect Pest Management ◽  
Forest Insect ◽  
Emergency Situations ◽  
Entomopathogenic Viruses

AbstractStrategies for the use of entomopathogenic viruses in the management of forest insect pests include the use of viruses by themselves or with other biocontrol or chemical agents applied simultaneously or separately at strategic time intervals. It is concluded that baculoviruses (nuclear polyhedrosis and granulosis viruses) have considerable potential as components of integrated forest insect pest management systems. The prime limiting factors in their large scale use at present are the high cost of virus production and underdevelopment of application technology. Their greatest potential will probably be realized when used as an indirect, or preventative, strategy with a view to preventing the occurrence of pest emergency situations.

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