Farmers are complaining that the agriculture ministryís pesticide campaign is not adequate for the locust swarms continuing to enter Israel from Egypt. Less than 30 percent of the insects are eliminated. Three swarms have flown in in as many days; the largest one Monday landing on the fields of the Eshkol region and its environs opposite the Gaza Strip and causing damage. The hot, easterly winds forecast for the rest of the week portend heavy swarms reaching central Israel, further north.