टिड्डी विपत्तियों और उन्नति

The attack of the desert locust used to occur earlier in a phases of plague cycles (a period of more than two consecutive years of wide-spread breeding, swarm production and thereby damaging of crops is called a plague period) followed by a period of 1-8 years of very little locust activity called as the recession period again to be followed by another spell of plague. India witnessed several locust plague and locust upsurges and incursions during last two centuries as indicated below:

Locust plagues observed during different years

Locust plagues observed during different years
Locust plagues observed during following years
1812-1821 1900-1907
1843-1844 1912-1920
1863-1867 1926-1930
1869-1873 1940-1946
1876-1881 1949-1955
1889-1891 1959-1962

Locust upsurges observed during different years

Locust upsurges observed during different years
Locust upsurges observed
Year No. of swarms incursion
1964 004
1968 167
1970 002
1973 006
1974 006
1975 019
1976 002
1978 020
1983 026
1986 003
1989 015
1993 172
1997 004

Small scale localized locust breeding have also been reported and controlled during the period 1998, 2002, 2005 , 2007 and 2010. Since 2010 till 2012-13, situation remained calm and no large scale breeding and swarms have been reported. However, solitary phase of Desert locust has been reported from time to time at some locations in the State of Rajasthan and Gujarat