The pandemic has set off a wave of theft in the Philippines. The target? Plants.The government has stepped up monitoring of social media and patrolling of protected natural areas amid reports of traders scouring mountains and forests for plants, including endangered species, to meet a sudden spike in demand from locked-down Filipinos who are craving some greenery in their homes.“Illegal gatherers and collectors are having a fiesta because the market is bigger and prices are more attractive,”…