Potato Tuber Moth
Phthorimaea operculella
Hakan SARI - Agricultural Engineer
1975
1996
17
135.000
Duties
Year of Birth
Year of Graduate of Uludag University –Plant Protection
Year Experince in Agriculture
Ton Responsible Potato Amount in a year
Potato and Seed Poatato Production Corn Production
Best Paractices
Potato Tuber Moth
Where is the PTM ?
What happens ?
What happens ?
General Lossed in General
Identify
Wing Span 12-15 mm
Brown grey
Body 10 mm
Lighter grey Grey
Identify in the field
Confusing with Tuta absoluta
Diff; Tuta is green, and eat epitel cells When it stay wings are closed
They are active generally in night
Identify in the field
PTM activity is limited while rainning/irrigation
Or we can say PTM is more active in dry condition
Higher Temperature encouraged PTM flights The best temeperature is around 26C
PTM can survive between 10-35 C ideally
With constant 26 C
4 days 12 days
6 days
5 days Total c 27 days is a cycle Depending to year
PTM can be 8 overlapping generation in a year
In a tropic area go up to 12.
Life Cycle
Contamination
Seed Field Storage
Contamination - Seed
It effects to Potato eye and Potato can not emerge with right number of stem Secondary infection might be occured
Less embiryo means less power of seed
Contamination - Field
Eggs are generally laying on Potato eye under the soil Or laying on leafs/stems
Contamination Storage
PTM can not active less then 10 C
And most of Potato Stores are equal or less then 10 C Otherwise they could not store properly.
With this circumstances we could not talk about New Contamination in Stores,
All PTM comes by field
PTM need TPM
(Total Pest Management)Cultural Action Physical Actions Chemical Actions
Rotation
Certified Seed Usage
Use deeper growing variety
Soil Selection (Non Clay, Sandy)
Soil Preparation
Better ridging (2-3 times) Irrigate properly (no cracks) Trace Population by traps
Trace temperature and rainfall
Use register Insecticde
