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You searched for: Journal Entomologia experimentalis et applicata Remove constraint Journal: Entomologia experimentalis et applicata Publication Year 1982 Remove constraint Publication Year: 1982 Source 1982 v.31 no.1 Remove constraint Source: 1982 v.31 no.1
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1. Arthropod resistance to insecticides: a key to pest control failures and successes in north american apple orchards

Author:
CROFT, B.A.
Source:
Entomologia experimentalis et applicata 1982 v.31 no.1 pp. 88-110
ISSN:
0013-8703
Subject:
Amblyseius fallacis; Aphidoidea; Cydia pomonella; DDT (pesticide); Malus domestica; apples; biological control; insecticide resistance; insecticides; integrated pest management; leafminers; natural enemies; orchards; organophosphorus compounds; pest control; predatory mites; pyrethrins; North America
Abstract:
... Cases of developed resistance in apple arthropods in North America, including pests and natural enemies, are reviewed with emphasis on the past 20 years since organophosphate (O-P) insecticides were first widely employed. During this period, no key pest, including the codling moth, Laspeyresia pomonella L., has developed resistance to the O-P compound, azinphosmethyl, while a variety of secondary ...
DOI:
10.1111/j.1570-7458.1982.tb03121.x

2. Biological aspects of antifeedants

Author:
SCHOONHOVEN, L.M.
Source:
Entomologia experimentalis et applicata 1982 v.31 no.1 pp. 57-69
ISSN:
0013-8703
Subject:
antifeedants; food intake; habituation; insect behavior; phytophagous insects; plant biochemistry; receptors
Abstract:
... Certain chemicals of plant origin may inhibit food intake in phytophagous insects. Such antifeedants act at low concentrations and are perceived by specialized deterrent receptors or by their modifying effect on normal chemosensory input. In some cases habituation to the presence of antifeedants occurs. When we want to find more chemicals which fulfill all requirements of true and effective antife ...
DOI:
10.1111/j.1570-7458.1982.tb03119.x

3. Endocrine strategies for insect control

Author:
BOWERS, WILLIAM S.
Source:
Entomologia experimentalis et applicata 1982 v.31 no.1 pp. 3-14
ISSN:
0013-8703
Subject:
Ageratum; animal fertility; crop damage; hormone antagonists; imagos; immatures; insect control; insect pests; juvenile hormones; mechanism of action; metabolism; precocenes; precocious metamorphosis
Abstract:
... Analogs of juvenile hormone III have been successfully applied to the control of several adult insect pests. Since these hormones are ineffective for the control of immature insects which are most important in agriculture through their feeding damage to crops, we searched for and discovered hormone antagonists as natural constituents of plants in the genus Ageratum. These anti-hormones (Precocenes ...
DOI:
10.1111/j.1570-7458.1982.tb03114.x

4. Function of migration in the seasonal synchronization of insects

Author:
DINGLE, HUGH
Source:
Entomologia experimentalis et applicata 1982 v.31 no.1 pp. 36-48
ISSN:
0013-8703
Subject:
diapause; entomologists; insects; life history; migratory behavior; natural selection; seasonal variation; temperate zones; tropics; variance
Abstract:
... Seasonal migrations of insects can be roughly divided into those within the temperate zone, those within the tropics, and those between the tropics and temperate areas. Temperate migrations often involve movements to and form diapause sites with correlated seasonal cycles in reproductive physiology. Many temperate migrants have apterous or brachypterous generations whose adaptive significance is n ...
DOI:
10.1111/j.1570-7458.1982.tb03117.x

5. Hits and misses. the ecological approach to pest control in orchards

Author:
GRUYS, P.
Source:
Entomologia experimentalis et applicata 1982 v.31 no.1 pp. 70-87
ISSN:
0013-8703
Subject:
Angiospermae; Aphidoidea; Tetranychidae; Tortricidae; Typhlodromus pyri; apples; arthropods; biological control; integrated pest management; leafminers; mite control; orchards; surveys; Netherlands
Abstract:
... Experiments in the Netherlands have shown that over half of the 24 species of arthropod noxious to apple orchards can be controlled fully or substantially by biological or cultural methods. Typhlodromus pyri proved the agent responsible for biological spider mite control. Contrary to the results of earlier experiments in the Netherlands, biological control of spider mites was successful in intensi ...
DOI:
10.1111/j.1570-7458.1982.tb03120.x

6. Insect control with growth regulators interfering with the endocrine system

Author:
STAAL, GERARDUS B.
Source:
Entomologia experimentalis et applicata 1982 v.31 no.1 pp. 15-23
ISSN:
0013-8703
Subject:
cost effectiveness; endocrine system; field crops; insect control; insects; juvenile hormone analogs; juvenile hormones; mechanism of action; metamorphosis; pests; prototypes
Abstract:
... Out of a field of many thousands of analogs of the insect juvenile hormones (JHA), only a few have found practical utility in the control of a variety of insect species. Their mode of action and the lack of foliar stability in all but the most recently discovered juvenoids have so far precluded their use against pests of field crops. A possible more efficacious mode of action is present in anti-ju ...
DOI:
10.1111/j.1570-7458.1982.tb03115.x

7. Insect diapause, the seasonal synchronization of life cycles, and management strategies

Author:
CHIPPENDALE, G. MICHAEL
Source:
Entomologia experimentalis et applicata 1982 v.31 no.1 pp. 24-35
ISSN:
0013-8703
Subject:
Diatraea grandiosella; Leptinotarsa decemlineata; adults; amino acids; climatic factors; crop residues; crops; diapause; food availability; hemolymph; insect control; insect pests; juvenile hormones; larvae; phytophagous insects; planting date; temperature
Abstract:
... Diapause permits insect survival under adverse climatic conditions and synchronizes the life cycles of individual insects within a population as welt as with their food supply. The question is addressed about how the state of diapause might be more fully exploited for insect control than it is at present. Methods currently used and new approaches that might be developed to disrupt the seasonal syn ...
DOI:
10.1111/j.1570-7458.1982.tb03116.x

8. Mechanism of host-plant recognition

Author:
DETHIER, V.G.
Source:
Entomologia experimentalis et applicata 1982 v.31 no.1 pp. 49-56
ISSN:
0013-8703
Subject:
central nervous system; host plants; insects; learning; satiety; sense organs
Abstract:
... Recognition and preference of host plants involve the integration of a complex of neural and metabolic events. These include: the sensing and encoding characteristics of the sense organs, decoding mechanisms in the central nervous system, assessment of acrossfiber patterns and deterrent/stimulant ratios, pre- and post-ingestion factors such as level of satiety, nutritional balance, and experientia ...
DOI:
10.1111/j.1570-7458.1982.tb03118.x

9. Recent trends of insect control in the tropics

Author:
BRADER, L.
Source:
Entomologia experimentalis et applicata 1982 v.31 no.1 pp. 111-120
ISSN:
0013-8703
Subject:
cash crops; cassava; corn; cotton; ecosystems; entomologists; farmers; food crops; insect control; insects; millets; plant health; production technology; rice; tropics
Abstract:
... Efforts to increase agricultural production in the tropics must he oriented in the first place towards the small farmers' food crops. However, by tradition virtually all research efforts have been oriented to the so-called cash crops, and consequently current knowledge on pest control in food crops in the tropics is very limited. Moreover entomologists are trained on the basis of intensive agricul ...
DOI:
10.1111/j.1570-7458.1982.tb03122.x