Sticky rolls for Tuta absoluta
The Tutaroll is an innovative product from Russell IPM for the management of Tuta absoluta. It is a clear film coated with non-drying glue and treated with slow release Tuta absoluta pheromone formulation. It is one cost effective pre-baited ready to use sticky roll. The Tutaroll ensures steady release of attractant for longer period. Our extensive field studies also showed application of Tutaroll captures Tuta absoluta successfully without affecting the beneficial’s Nesidiocoris tenuis or Trichogramma achaeae. It is compatible with all sorts of biological control systems in place for the management of Tuta absoluta.
Tutaroll is a clear film coated with nondrying glue and treated with slow release Tuta absoluta pheromone formulation lure. It is compatible with all sorts of biological control systems in place for the management of Tuta absoluta. Evaluation trial of Tutaroll in green houses shows it to be very effective in capturing Tuta absoluta with an insignificant accidental capture of Beneficial’s Nesidiocoris tenuis and Trichogramma achaeae.
■ Species specific attraction. ■ Significant reduction in the population of Tuta absoluta. ■ Fully compatible with other biological control programmes. ■ Insignificant accidental capture of Beneficial’s Nesidiocoris tenuis and Trichogramma achaeae.
600
In field experiment it was showed that 24
500
hours after application maximum number of
400
580 moths were captured at 1.5m heights.
300
Therefore, the optimum height was proved to
200
be 1.5m (see fig 1). Results showed the ratio
100
between Tuta absoluta and Nesidiocoris tenuis
0 Tuta absoluta Nesidiocoris
2.5M
1.5M
1.0M
0.6M
311
580
296
302
12
6
4
5
was insignificant 100:1.
Fig 1. Effect of 2 metres Tutaroll in various crop heights after 24 hrs.
To evaluate the impact of the distance
400
between the Tutaroll and tomato plant was 300
further studied. The Rolls positioned about 70 cm from the plant captured no Nesidiocoris. Rolls
200
positioned next to the tomato plant captured
100
Nesidiocoris and the ratio increased up to 100:4. 0 Tuta absoluta Nesidiocoris
60cm alture
120cm alture
190cm alture
279
263
325
0
0
0
Fig 2. Effect of positioning Tutaroll close to the tomato plant. (2m strips at different heights after 24hrs)
Not attractive to Trichogramma achaeae
Highly attractive to Tuta absoluta
Not attractive to Nesidiocoris tenuis
A further study was conducted to compare the capture of Tuta absoluta and Nesidiocoris tenuis and found consistent result for a longer period. The results after application of 24 hours showed at lower height catches of Tuta absoluta was significantly higher (675 moths / 24hr) than that of upper height. At the same time beneficial insect Nesidiocoris tenuis capture in lower height 60-120cm was zero. However, at 190cm only 3 Nesidiocoris tenuis were captured. 10 days after the application, a similar trend was followed at a lower height and 60cm distance, Tutaroll captured 4988 Tuta absoluta moth and only one Nesidiocoris tenuis. Results 24 hours after the application of Tuta Roll
Results 10 days after the application of Tuta Roll 500
700 600
400
500 300
400 300
200
200 100
100 0
Tuta absoluta
60cm altura
120cm altura
190cm altura
Nesidiocoris
0
Tuta absoluta
60cm altura
120cm altura
190cm altura
Nesidiocoris
Fig 3. Effect of 2m Tutaroll in various crop heights after 24hrs and 10 days in presence of Tuta absoluta and beneficial insect Nesidiocoris tenuis
Results 24 hours after the application of Tuta Roll
Tutaroll was also tested in the presence of Trichogramma achaeae. Again it proved
250
a consistent higher number of Tuta absoluta captured when the trap was placed
100
at a lower height. At all heights the capture of Trichogramma achaeae was zero,
150
therefore Tutaroll does not affect the activity of Trichogramma achaeae at all.
100
Considering all of the studies it is evident that Tutaroll clear is safe with a high compatibility with other biological control systems. As it is clear in colour it is
50 0
Tuta absoluta
60cm altura
120cm altura
190cm altura
Nesidiocoris
Fig 4. Effect of 2m Tutaroll at various heights after 24hrs in the presence of Tuta absoluta and Trichogramma achaeae
not affecting the natural enemies Nesidiocoris tenuis or Trichogramma achaeae.
ww
Russell IPM also offer its customer a similar kind of Tuta absoluta pheromone mediated yellow sticky rolls for use in green houses where beneficial insects are not in use as a biological control agents. The yellow colour of the sticky rolls adds an extra advantage of capturing whitefly and aphids.
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