摘要:

In 1907, Girault reported that the female of the lesser peachtree borer,Synanthedon pictipes(Grote and Robinson), produces a potent sex pheromone that attracts males of this species and stimulates them to attempt copulation. Subsequently, Cleveland and Murdock (1964) demonstrated that the male borers could be attracted and trapped by exposing virgin females. This insect may therefore be an ideal candidate for pest management programs involving sex pheromones. It is diurnal, on the wing from March to October in the southeastern United States, and can be mass reared (Cleveland et al. 1968). Thus, it is readily available and can be studied for long periods. Additionally, its natural host range is limited to a few species of plants. The present paper reports our efforts to extract the natural pheromone, and to work out a field bioassay that would allow us to proceed with the isolation and identification.

ISSN:0046-225X    

DOI:10.1093/ee/3.3.569

出版商:Oxford University Press    

年代:1974

数据来源: OUP

摘要:

A study was undertaken at the Hawaiian Fruit Flies Laboratory in Honolulu, Hawaii, to find a possible internal marker for the adult melon fly,Dacus cucurbitaeCoquillett, that would be detectable in release-capture studies. The marker of choice would be a dye that could be fed in the larval diet. We found that the fly was colored black when Sudan® Deep Black BB was fed in this way. We therefore investigated the marking, the most promising dose, and the effect of the dye on the mating and flight behavior, and longevity of dyed and undyed flies.

ISSN:0046-225X    

DOI:10.1093/ee/3.3.571

出版商:Oxford University Press    

年代:1974

数据来源: OUP

摘要:

A variety of traps with attractive odors have been used to capture adult apple maggots,Rhagoletis pomonella(Walsh), (Howitt and Conner 1965, Neilson 1960, and Still 1960). However, the beneficial Tachinidae that are parasitic on some orchard pest insects and others are often attracted to these traps (Moore 1969). Therefore, when traps were hung in apple trees at 10 locations (1 trap/tree) on Washington Island, Wis., and used to monitor adult populations of the apple maggot, the collections were also checked for captures of other Diptera. The trap was a modified double-wing trap developed by Howell (1972) for use against the codling moth,Laspeyresia pomonella(L.) that is commercially available (Pherotrap IC®). The bait, (ca. 15 ml) Maggottract™ I Bait, was exposed on cotton wicks placed inside a plastic vial.

ISSN:0046-225X    

DOI:10.1093/ee/3.3.572

出版商:Oxford University Press    

年代:1974

数据来源: OUP

摘要:

The effects (beneficial or detrimental) of insecticides on the morphology and physiology of crop plants are poorly understood. Plant growth has been shown to be inhibited by some insecticides (Arthur and Arant 1954) and plant yields have been increased by others (Wressell and Driscoll 1964). Wheeler and Bass (1971) reported that phorate, carbofuran, methomyl, and disulfoton, when applied to soybeans, did not affect germination, number of mature pods per plant, or yield. They did report, however, that soybean plants were taller in plots treated with methomyl and carbofuran. The following experiment was conducted in order to clarify some of the findings of Wheeler and Bass.

ISSN:0046-225X    

DOI:10.1093/ee/3.3.574

出版商:Oxford University Press    

年代:1974

数据来源: OUP

摘要:

Microctonus aethiops(Nees), a European braconid parasitoid of adult alfalfa weevils,Hypera postica(Gyllenhall), was first established in the eastern United States in 1961 (Coles and Puttler 1963). Brunson and Coles (1968) listed release localities ofM. aethiopsthrough 1967, and it has been released in many other localities in the East and Midwest since then. Day et al. (1971) described the distribution ofM. aethiopsin the eastern United States and gave the dates of first recovery in many eastern states. However, to my knowledge it is not known how farM. aethiopshas dispersed from an initial release site where a known number of parasitoids was released.

ISSN:0046-225X    

DOI:10.1093/ee/3.3.575

出版商:Oxford University Press    

年代:1974

数据来源: OUP

摘要:

The primary (key) pest of the globe artichoke,Cynara scolymusL. is the artichoke plume moth,Platyptilia carduidactyla(Riley) (Lepidoptera: Pterophoridae) (Lange 1941, Lange et al. 1954). The control program for the plume moth consists generally of applications of either methyl or ethyl parathion (or combinations of these) at intervals of 7–14 days. The chrysanthemum leafminer, previously known as Phytomyza atricornis Meigen, and now considered asP. syngenesiae(Hardy) (Diptera:Agromyzidae) (Griffiths 1967, Steyskal 1969) is a secondary pest periodically causing severe economic damage to the globe artichoke. The form of this damage is reduced plant vigor from extensive leaf mining.

ISSN:0046-225X    

DOI:10.1093/ee/3.3.576

出版商:Oxford University Press    

年代:1974

数据来源: OUP