Dysdercus

Juvenile hormone activity. Acetone extract of the dried stem produced weak activity on Dysdercus cingulatus °. ... 

Insects 109 110 entire insect—Acyrthosiphum pisurn 163, Megoura vicia 118, Pieris brassicae 60, Diataraxia oleracea 524, Tribolium castaneum 3560, Phaedon cochleariae 2820, Dysdercus fasciatus 3920, Blatta orientalis 280, B. germanica 1180, Musca do-mestica 1100. Crop fluid of Locusta migratoria 112,500. 

Ajitha V. and Muraleedharan D. (2001) Identification of PBAN-like immunoreactivity in the neuroendocrine system and midgut of Dysdercus cingulatus (Heteroptera Pyrrhocoridae). liar. J. Entomol. 98, 159-165. 

Figure 2. Induction of precocious metamorphosis in the cotton Stainer Dysdercus cin-...

We began to extract plants with apolar solvents and tested these extracts by contact and fumigation against the cotton stainer, Dysdercus cingulatus, and the milkweed bug, Oncopeltus fasciatus. Eventually we found that the extract of the bedding plant, Ageratum houstonianum, contained two potent anti-juvenile hormones. 

Deoxyvasicine Antifeedant in Aulacophora, Dysdercus. Epilachna (Coleoptera) — 209... 

Dysdercus cingulatus Fabricius Dysdercus koenipii Fabricius nymph GR, T 76... 

It inhibited morphogenetic and gonadotropic processes in the insect Dysdercus similis... 

Effective doses of these derivatives against Pyrrhocoris apterus and Dysdercus cingulatus are 51 0.5,52 0.01,53 0.000 04,54 0.000 01 and 55 0,000 002 pg/insect. The latter derivative is the most potent juvenile hormone analogue known so far. Only the isomers of S-configuration of this type are active, while those containing... 

Bakuchiol seeds Psoralea cornifolia L. Dysdercus koenigii 5th instar larvae Topical 10 pg 108... 

Roots Iris Iris endata Thamb. Dysdercus koenigii Sth larval instars Topical +++ 117... 

Although fipronil has a chiral, asymmetric sulfoxide group, studies have shown that there are no significant differences in activity between the two enantiomers on cotton Stainer Dysdercus cingulatus), grain weevil Sitophilus granarius) or house fly Musca domestica) [98]. 

The essential oil of Acorus calamus (Araceae) contains p-asarone (30) that causes depression of development of the gonads and ovaries of the insect Dysdercus koenigii. Although third and fourth instar larvae molted normally to... 

Conessine (101) is phagorepellent to Pieris, Bombyx, Ly-mantria, and Dysdercus (Wink, 1993). 

Calam, D. H. and Youdeowei, A. (1968) Identification and functions of secretion from the posterior scent gland of fifth-instar larva of the bug, Dysdercus intermedins. J, Insect Physiol., 14, 1147-58. 

The a-D-glucosidase activities in extracts of antennal segments and in the haemolymph of the cotton stainer (Dysdercus intermedius) have been measured quantitatively using aa-trehalose, 4-nitrophenyl a-D-glucopyranoside, sucrose, turanose, maltose, isomaltose, and palatinose as substrates. Three active species were isolated by gel filtration from the segments, but only two from the haemolymph. The results of the isolation were discussed with reference to the hypothesized presence of sugar reception processes in insect gustatory cells. 

BIOLOGICAL ACTIVITY Toxicity [4058,4059] hypolipaemic [4058] activity on second instar larvae of the cotton bug, Dysdercus cingulatus [4059]. 

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