Thruppenny Bit

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Related to thrip: Thysanoptera, Thunder flies

Thruppenny Bit

A British coin worth three pence. It has not been minted since the decimalization of the British pound in 1971. As a result, a thruppenny bit was worth 1/80 of one pound. It was also called threepence or a thrip.
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References in periodicals archive ?
After bulb formation, the onions can tolerate heavy infestation of thrips, especially when they are almost ready for harvest.In spring onions, the pest affects the leaf quality due to the formation of the feeding scars making the leaves to look whitened.
The reduction percentages of thrips population development during different periods and years varied significantly (F3,111 =45.13; P= 0.0001 periods) and (F3,111= 0.83; P=0.4820 years).
The field experiment was conducted to study the activity of thrips and their natural enemies on rose at Rizwan Sidiqui Agricultural farm near Tando Jam during 2008.
Jassid and thrips egg count was recorded highest on NIAB non-Bt while lowest egg count was found on MNH-988.
In this mango orchard approximately 88.9% of the inflorescences presented malformation and high density of thrips (Figure 1).
Such plant defenses reduce the ability of thrips to penetrate the leaf and remove the sap (Milne & Walter 2000).
The cultivar TVU-1509 has been reported as highly resistant to flower bud thrips (Alabi et al., 2011) and Sanzi as moderately resistant to flower bud thrips (Abudulai et al., 2006).
Considering the data described, [y.sub.ij] is the number of thrips observed (the response variable) of the ith plant in the jth evaluation period (the independent variable), and the real functional relationship [y.sub.ij] versus [x.sub.j] is accordingly described by the non-linear regression models in relation to the type of ground cover used.
6A); antena con 7-8 antenomeros, margen posterior del tergo VIII con peine de desarrollo variable; esternos con o sin sedas accesorias (discales); primera vena del ala anterior con una hilera de sedas generalmente interrumpida Thrips Tres especies se hallan en ornamentales, dos en Cuba, Thrips orientalis Bagnall y Thrips palmi Karny (Suris & Gonzalez, 2008) y dos en Costa Rica Thrips florum y Thrips tabaci (Retana-Salazar et al, 2014).
Managing Thrips on Roses with Combinations of Neonicotinoide and Biological Insecticides.